1. physics

    A place kicker must kick a football from a point 32.2 m from a goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked the ball leaves the ground with a speed of 20.8 m/s at an angle of 53° to the horizontal. (a)

    asked by Anonymous on December 13, 2012
  2. physics

    a Baseball player throws a ball for the outfield horizontally such that it is released 1.5 meters above the ground. if the ball is to reach second base 20.0 meters away, how fast must the ball be thrown so that is does not bounce before reaching the base

    asked by Kat on September 30, 2014
  3. PHYSICS

    A ball is thrown from a point 1.2 m above the ground. The initial velocity is 19.8 m/s at an angle of 34.0° above the horizontal. (a) Find the maximum height of the ball above the ground. (b) Calculate the speed of the ball at the highest point in the

    asked by STEPH on October 16, 2007
  4. physics

    using a powerful air gun, a steel ball is shot vertically upward with a velocity of 80 m/s, followed by another shot after 5 seconds. find the initial velocity of the second ball to meet the first ball 150 m from the ground.

    asked by Astro on January 25, 2014
  5. Physics

    A basketball player tries to make a half-court jump shot, releasing the ball at the height of the basket. Assuming that the ball is launched at 48.0°, 13.0 m from the basket, what speed must the player give the ball?

    asked by Shay on October 18, 2009
  6. physics

    A golfer takes two putts to get his ball into the hole once he is on the green. The first putt displaces the ball 3.4 m east, and the second 6.55 m south. What displacement would have been needed to get the ball into the hole on the first putt. answer in

    asked by carlos on January 1, 2015
  7. physics

    A golfer launches a golf ball off a tee that has been raised 24.8 meters off the ground. If the golfer strikes the ball with a velocity of 26.5 m/s at an angle of 45.8 degrees, how far will the ball carry in the air before hitting the ground below?

    asked by emily on November 4, 2012
  8. physics

    A soccer player kicks the ball toward a goal that is 15.0 m in front of him. The ball leaves his foot at a speed of 17.1 m/s and an angle of 35.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.

    asked by anonymous on February 3, 2014
  9. Physics

    A soccer player kicks the ball that travels a distance of 36.0 m on a level field. The ball leaves his foot at an initial speed of (v0) and an angle of 30.0° above the ground. Find the initial speed (v0) of the ball.

    asked by Alina on September 19, 2018
  10. pyhsics

    A ball with a mass of 0.8 kg is kicked up the ramp with an initial speed of 22 m/s. What is the speed [m/s] of the ball at the top assuming no friction? Angle from which ball is kicked is 23 degrees and the horizontal leg is 7 feet long.

    asked by Jimmy on October 18, 2011
  11. Physics

    A soccer player kicks the ball toward a goal that is 27.0 m in front of him. The ball leaves his foot at a speed of 16.7 m/s and an angle of 36.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.

    asked by WR on September 7, 2013
  12. physics

    A ball is thrown from a point 1.38 m above the ground. The initial velocity is 19.9 m/s at an angle of 33.8° above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

    asked by Caitlin on September 23, 2012
  13. Physics

    A ball is thrown from a point 1.38 m above the ground. The initial velocity is 19.9 m/s at an angle of 33.8° above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

    asked by David on September 22, 2012
  14. PHYSICS

    A ball is thrown from a point 1.1 m above the ground. The initial velocity is 20.3 m/s at an angle of 32.0° above the horizontal. (a) Find the maximum height of the ball above the ground??? (b) Calculate the speed of the ball at the highest point in the

    asked by Anonymous on January 30, 2012
  15. Physics

    A ball is thrown from a point 1.1 m above the ground. The initial velocity is 20.0 m/s at an angle of 32.0° above the horizontal. (a) Find the maximum height of the ball above the ground. (b) Calculate the speed of the ball at the highest point in the

    asked by Sherry on September 13, 2012
  16. physics

    If someone kicks a soccer ball across a flat parking lot with an initial velocity of 19.0m/s @ 19 degrees, how long will the soccer ball be in flight and how high above its launch point will the ball go? What would be the x and y components of this

    asked by matt on January 31, 2012
  17. Physics

    A ball is thrown from a point 1.38 m above the ground. The initial velocity is 19.9 m/s at an angle of 33.8° above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

    asked by Laura on September 21, 2012
  18. Physics

    A soccer player kicks the ball toward a goal that is 23.0 m in front of him. The ball leaves his foot at a speed of 17.6 m/s and an angle of 29.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.

    asked by Cece on February 6, 2015
  19. Physics

    A ball is thrown from a point 1.38 m above the ground. The initial velocity is 19.9 m/s at an angle of 33.8° above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

    asked by David on September 20, 2012
  20. physics

    A soccer player kicks the ball toward a goal that is 15.0 m in front of him. The ball leaves his foot at a speed of 17.1 m/s and an angle of 35.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.

    asked by anonymous on February 3, 2014
  21. PHYSICS

    A ball is thrown from a point 1.1 m above the ground. The initial velocity is 20.3 m/s at an angle of 32.0° above the horizontal. (a) Find the maximum height of the ball above the ground??? (b) Calculate the speed of the ball at the highest point in the

    asked by Anonymous on January 31, 2012
  22. physics

    A soccer player kicks the ball toward a goal that is 18.0 m in front of him. The ball leaves his foot at a speed of 19.3 m/s and an angle of 27.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.

    asked by louis on February 6, 2013
  23. physics

    A worker in a warehouse uses a rope passing through some pulleys to lift a heavy crate. The worker exerts a force five times less than the weight of the crate but has to move the rope four times as far as the crate moves. This situation... A) can happen

    asked by Belinda on July 5, 2014
  24. physics

    A ball is thrown straight upward and returns to the thrower's hand after 2.20 s in the air. A second ball is thrown at an angle of 31.0° with the horizontal. At what speed must the second ball be thrown so that it reaches the same height as the one thrown

    asked by jennifer on November 18, 2010
  25. PHYSICS

    A person on an apartment balcony holds a ball over the balcony and throws it directly upwards with an initial velocity of 30 m/s [up]. The ball was thrown from 15 m above the ground. How long will it take for the ball to hit the ground?

    asked by Tasha on February 19, 2013
  26. physics

    A solid ball with a mass m = 0.53 kg floats in a tank of water. The ball is made of material with a density of 400 . The density of water is 1000 . What fraction of the volume of the ball is below the waterline?

    asked by Anonymous on April 28, 2015
  27. PHYSICS

    A solid ball with a mass m = 0.53 kg floats in a tank of water. The ball is made of material with a density of 400 kg/m3 . The density of water is 1000 kg/m3 . What fraction of the volume of the ball is below the waterline?

    asked by MONSOFT on April 3, 2015
  28. physics

    A solid ball with a mass m=0.53kg floats in a tank of water.The ball is made of material with a density of 400kg/m^3.The density of water is 1000kg/m^3.what fraction of the ball is below waterline?

    asked by eunice on March 25, 2015
  29. Physics

    A ball and a barrel roll down a 16m-long incline of height "h." Assume I equals 2/5mr^2 for the ball I equals 1/2mr^2 for the barrel. Prove that the ball reaches the bottom first.

    asked by Elli on December 19, 2008
  30. Nct

    A ball impinges directly on a similar ball at rest. The first ball is reduced to rest by the impact. Find the coefficient of restitution, if 1/5 of the initial kinetic energy is lost by impact

    asked by Nasser on June 25, 2016
  31. Physics

    A ball is thrown straight upward and returns to the thrower's hand after 3.40 s in the air. A second ball is thrown at an angle of 29.0° with the horizontal. At what speed must the second ball be thrown so that it reaches the same height as the one thrown

    asked by Sammy on October 13, 2010
  32. Physics

    A ball is tossed upward and returns to its original position after 19.7 seconds. If another ball is thrown at an angle of 41.4 degrees above the horizontal, at what speed, in m/s, must it be thrown such that it returns to the same height at the same time

    asked by Bira on April 11, 2016
  33. maths

    A heavy 9cm diameter ball is placed in an empty cylindrical tin of diameter 12cm. Enough water is poured into the can to cover the ball.if the ball is then removed , how far does the water level fall

    asked by Riliwan on November 22, 2016
  34. Physics

    A ball is thrown straight upward and returns to the thrower's hand after 2.30 s in the air. A second ball is thrown at an angle of 42.0° with the horizontal. At what speed must the second ball be thrown so that it reaches the same height as the one thrown

    asked by Harley on June 4, 2014
  35. physics

    A ball is rolled up a ramp at 2.50 m/s. The ball slows down for 5.00 s and then rolls back down. Assume frictions isn't a factor and that the up ramp is the positive. At what point does the ball's acceleration change and what is the acceleration on the way

    asked by joe on October 30, 2014
  36. maths

    A heavy 9cm diameter ball is placed in an empty cylindrical tin of diameter 12cm. Enough water is poured into the can to cover the ball.if the ball is then removed , how far does the water level fall

    asked by Riliwan on November 22, 2016
  37. NU

    a ball is thrown straight upward with some unknow velocity. The ball reaches a maximum height above the launch point of 32m. how fast is the ball movin when it is 8 m above the launch point

    asked by frank on June 17, 2011
  38. Physics

    a basketball player is trying to make a half-court ump shot and releases the ball at the height of the basket. assuming that the ball is launched at 51 degrees, 14 m from the basket, what speed must the player give the ball?

    asked by JJ on April 18, 2010
  39. algebra

    a ball is thrown downward from the too of 110 ft bldg with an initial velocity of 14ft per second. the height of ball h after t seconds is given by the equation h = -16t^2-14t +110. how long after ball is thrown will it hit the ground

    asked by kai on December 15, 2011
  40. math

    a ball is thrown vertically upward from the top of a building 96 feet tall with an initial velocity 80 m/ sec .the distance s of the ball from the ground after t seconds is s= 96+80t-4.9 t^2.after how many seconds does the ball strike the ground

    asked by adeeba on November 17, 2015
  41. physics

    A ball is dropped from the top of a building. The balls fall 3 times farther during its last second of freefall than it did during its third second of freefall. The ball fell 4.9 meters during its first second, how tall is the building and how much time is

    asked by hi on October 25, 2014
  42. Math

    A bosu® ball in the shape of a hemisphere (half of a sphere) The diameter of the ball is 58 centimeters and is completely filled with air. How much air does the ball contain, in cubic centimeters? Round your answer to the nearest centimeter. (Use 3.14 for

    asked by Shawn on May 19, 2015
  43. algebra

    a ball is thrown downward from the too of 110 ft bldg with an initial velocity of 14ft per second. the height of ball h after t seconds is given by the equation h = -16t^2-14t +110. how long after ball is thrown will it hit the ground

    asked by kai on December 15, 2011
  44. physics

    A child drops a ball from a height of 10 m. Assume its acceleration increases uniformly at the rate of 10m/s2. find the velocity with which the ball strikes the ground. Find the time taken to the ball reach the ground.

    asked by Anonymous on June 9, 2014
  45. Quadratic equations

    A ball is thrown vertically upwards From the top of a building of height 29.4 m and with an initial velocity 24.5 m/sec. If the height H of the ball from the ground level is given by H = 29.4 + 24.5t - 4.9t², then find the time taken by the ball to reach

    asked by Anonymous on July 16, 2017
  46. Quadratic equations

    A ball is thrown vertically upwards From the top of a building of height 29.4 m and with an initial velocity 24.5 m/sec. If the height H of the ball from the ground level is given by H = 29.4 + 24.5t - 4.9t², then find the time taken by the ball to reach

    asked by Anonymous on July 16, 2017
  47. physics

    A child drops a ball from a height of 10 m. Assume its acceleration increases uniformly at the rate of 10m/s2. find the velocity with which the ball strikes the ground. Find the time taken to the ball reach the ground.

    asked by Anonymous on June 9, 2014
  48. physics

    A ball is dropped from the top of a building. The balls fall 3 times farther during its last second of freefall than it did during its third second of freefall. The ball fell 4.9 meters during its first second, how tall is the building and how much time is

    asked by H on November 11, 2012
  49. Physics

    A ball is thrown from a point 1.0 m above the ground. The initial velocity is 19.6 m/s at an angle of 30 degrees above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

    asked by Anonymous on September 21, 2012
  50. science

    a ball is thrown straight upward and returns to the thrower's hand after 3.00s in the air. A second ball is thrown at an angle of 30.0 deg with the horizontal. At what speed must the second ball be thrown so that it reached the same height as the one

    asked by tani on September 8, 2009
  51. algebra

    a ball is dropped from the top of a building that is known to be 256 feet high.the formula for finding the height of the ball at any time t is h=256-16t^2,where t is measured in seconds.how many seconds will it take for the ball to hit the ground?

    asked by Anonymous on August 20, 2016
  52. physics

    A soccer player kicks the ball toward a goal that is 16,8m in front of him . The ball leaves his foot at a speed of 16,0m/s and an angle 28,0degree above the ground.Find the speed of the ball when the goalie catches it in front of the net?

    asked by afika on May 8, 2016
  53. physics

    A ball on the end of a string is whirled around in a horizontal circle of radius 0.467 m. The plane of the circle is 1.24 m above the ground. The string breaks and the ball lands 2.49 m away from the point on the ground directly beneath the ball’s

    asked by Joan on October 5, 2014
  54. Physics - elastic collision

    A student flings a 23g ball of putty at a 225g cart sitting on a slanted air track that is 1.5m long. The track is slanted at an angle of 25deg with the horizontal. If the putty is traveling at 4.2m/s when it hits the cart, will the cart reach the end of

    asked by Farah on December 4, 2010
  55. Physics

    2 part question, only looking for part b. a) A driver wearing a seat beat decelerates at roughly the same rate as the car it self. Since many modern cars have a "crumble zone" built into the front of the car, let us assume that the car decelerates of a

    asked by Brandon on February 20, 2011
  56. physics

    The tallest volcano in the solar system is the 18 km tall Martian volcano, Olympus Mons. An astronaut drops a ball off the rim of the crater and that the free fall acceleration of the ball remains constant throughout the ball’s 18 km fall at a value of

    asked by Anonymous on October 1, 2011
  57. Physics

    Two students are on a balcony a distance h above the S street. One student throws a ball vertically downward at a speed vi ; at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in terms

    asked by Anonymous on March 31, 2016
  58. Physics

    A tennis ball is thrown vertically upward with an initial velocity of 8.0 m/s. a) what will the ball's speed be when it returns to its starting point. b) how long will the ball take to reach it's starting point?

    asked by Anonymous on September 15, 2012
  59. Physics

    If you throw a ball straight up at 10 m/s and release it 2m above the ground: a) What height will the ball reach V^2=u^2+2as 0=100+19.6s s=5.1+2 s=7.1m b)How long after you release the ball will it hit the ground? (Answer should be 2.22s but need help

    asked by Lisa on September 23, 2015
  60. physics

    A 50 gram ball moving to the right with a velocity of 0.6 m/s collides centrally with a 0.2 kilogram ball that is at rest. After the impact, the two balls rebound, with the heavier ball being observed to be moving to the right with a velocity of .24 m/s.

    asked by Elizabeth on May 22, 2018
  61. CALCULUS

    if a ball is thrown vertically upward with a velocity of 80m/s then its height after t seconds is s=80t-16t^2 a) what is the maximum height reached by the ball? b)what is the velocity of the ball when it is 96 ft above the ground on its way up? on its way

    asked by matttt on October 28, 2007
  62. Physical science

    ONE SECOND after ball A is projected upwards with a velocity of 16 m/s, a second ball, B, is thrown vertically downwards at a velocity of 9 m/s from a balcony 30 m above the ground. 1.Calculate how high above the ground ball A will be at the instant the

    asked by Khutso on March 27, 2016
  63. Algebra 2

    Okay I have : a ball is thrown with an initial velocity of 40 ft/second from a height of 4 feet. h(t)=-16t+40t+4 a) what is the highest point reached by the ball? b) at what time will the ball reach the highest point?

    asked by Bill on February 4, 2009
  64. Physics

    A tennis ball is thrown vertically upward with an initial velocity of +8.0 m/s. a. what will the ball's speed be when it returns to its starting point? b. how long will the ball take to reach its starting point?

    asked by Eli on September 24, 2008
  65. Science

    1. If the net force on an object is O N, the forces are considered unbalanced. true false** 2. Most people in the United States use feet and miles to measure distance in their everyday lives. Why do scientists in the United States use meters to measure

    asked by Samantha on February 11, 2016
  66. physics

    A baseball player hits a home run over the left-field fence, which is 104 m from home plate. The ball is hit at a point 1.04 m directly above home plate, with an initial velocity directed 28.5° above the horizontal. By what distance does the baseball

    asked by Anthony on October 16, 2012
  67. Physics

    A baseball player hits a home run over the left-field fence, which is 104 m from home plate. The ball is hit at a point 1.08 m directly above home plate, with an initial velocity directed 35.0° above the horizontal. By what distance does the baseball

    asked by Bill on December 8, 2015
  68. physics

    In a game of pool the cue ball strikes another ball of the same mass and initially at rest. After the collision the cue ball moves at 3.50 m/s along a line making an angle of 22 degrees with its original direction of motion. and the second ball had a speed

    asked by Chris on March 4, 2007
  69. Physics

    A car traveling at 71 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 63 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's

    asked by Kaley on March 3, 2016
  70. Physics

    A car traveling at 50 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 74 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's

    asked by Oriana on December 12, 2010
  71. Physics

    A car traveling at 58 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 63 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's

    asked by Leo on March 6, 2012
  72. physics

    A car traveling at 69 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 59 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's

    asked by John on September 28, 2009
  73. Physics

    A football player kicks a field goal, launchingthe ball at an angle of 48" above the horizontal. During the kick, the ball is in contact with the player's foot for 0.045 s, and the ball's acceleration is 290 m/sz. Vvhat is the range of the football?

    asked by Amy on October 10, 2017
  74. Physics

    A soccer player kicks the ball toward a goal that is 29.2 m in front of him. The ball leaves his foot at a speed of 19.1 m/s and an angle of 33.4° above the ground. Find the speed of the ball when the goalie catches it in front of the net. (Note: The

    asked by Ted on October 4, 2012
  75. physics

    A cannon barrel is elevated at an angle of 45°. It fires a ball with a speed of 350 m/s. (For the following questions, ignore air resistance.) (a) What height does the ball reach? (b) How long is the ball in the air? (c) What is the horizontal range of

    asked by yelya on August 25, 2011
  76. physics

    A cannon barrel is elevated at an angle of 45°. It fires a ball with a speed of 250 m/s. (For the following questions, ignore air resistance.) (a) What height does the ball reach? m (b) How long is the ball in the air? s (c) What is the horizontal range

    asked by Anonymous on December 3, 2014
  77. physics

    A soccer player kicks the ball toward a goal that is 28.6 m in front of him. The ball leaves his foot at a speed of 18.5 m/s and an angle of 30.6° above the ground. Find the speed of the ball when the goalie catches it in front of the net. (Note: The

    asked by tom on November 3, 2010
  78. physical science

    When you are driving a golf ball, a good follow-through helps to increase the distance of the drive. A good follow-through means that the club head is kept in contact with the ball as long as possible. Why does this technique allow you to hit the ball

    asked by Micah on June 28, 2011
  79. physics

    A ball is thrown vertically upwards with an initial velocity of 20.96 m/s. Neglecting air resistance, how long is the ball in the air? What is the greatest height reached by the ball? this problem seems easy enough but I can't seem to get the answer. How

    asked by courtney on January 16, 2008
  80. physical science

    When you are driving a golf ball, a good follow-through helps to increase the distance of the drive. A good follow-through means that the club head is kept in contact with the ball as long as possible. Why does this technique allow you to hit the ball

    asked by Micah on June 28, 2011
  81. phsc

    When you are driving a golf ball,a good follow-through helps to increase the distance of the drive. A good follow-through means that the club head is kept incontact with the ball as long as possible.Why does this technique allow you to hit the ball farther

    asked by brandy on June 26, 2012
  82. physics

    a basketball player tries to make a half court jumpshot releasing the ball at the height of the basket assuming the ball is lunch at 51 degrees 14 meters from the basket what velocity musta player give the ball

    asked by Anonymous on February 9, 2015
  83. Physics HELP!!

    A steel ball is hung from a vertical ideal spring where it oscillates in simple harmonic motion with a period T . At time t = 0 s, the ball is at its maximum displacement, A , from its equilibrium position. In terms of the period, at what time will the

    asked by Kinga on November 30, 2011
  84. physics

    a basketball player tries to make a half court jumpshot releasing the ball at the height of the basket assuming the ball is lunch at 51 degrees 14 meters from the basket what velocity musta player give the ball

    asked by Anonymous on February 9, 2015
  85. Physics

    1.How are alternating and direct current different? 2.Who invented direct current? 3.Who invented alternating current? 4.What are some of the advantages of alternating current? 5.Do all devices that plug into the wall run on alternating current? Why/why

    asked by Dan on May 20, 2014
  86. PHYSICS!

    A projectile is fired with an initial speed of 32.5 m/s at an angle of 61.4° above the horizontal. The object hits the ground 7.55 s later. What is the absolute value of the difference in height between the launch point and the point where the projectile

    asked by JJ on February 14, 2009
  87. PHYSICS!

    A projectile is fired with an initial speed of 32.5 m/s at an angle of 61.4° above the horizontal. The object hits the ground 7.55 s later. What is the absolute value of the difference in height between the launch point and the point where the projectile

    asked by JJ on February 14, 2009
  88. College Physics

    The Daytona 500 stock car race is held on a circular track that is approximately 2.25 miles long, and the turns are banked at an angle of 32.5°. It is currently possible for cars to travel through the turns at a speed of about 189 miles per hour. Assuming

    asked by Anon14 on September 18, 2011
  89. Physics

    A tennis ball, starting from rest at a height h = 2.10 m, rolls down the hill. At the end of the hill the ball becomes airborne, leaving at an angle of 27.0° with respect to the ground. Treat the ball as a thin-walled spherical shell (I = ⅔mr²), and

    asked by Bex on October 30, 2016
  90. physics

    A tiny ball of mass 0.60g is suspended from a rigid support with a piece of thread in a horizontal field of intensity 700N/C.The ball is in equilbrum when the thread is inclined at an angle of 20^(0) to the vertical.What are the magnitude and sign of the

    asked by bless on August 28, 2013
  91. Physics

    A small 6.8 g plastic ball is suspended by a 37.3 cm long string in a uniform electric field of 4790 N/C, as shown. The acceleration of gravity is 9.8 m/s2 , and the Coulomb constant is 8.99×109 N · m2/C2.. If the ball is in equilibrium when the string

    asked by Anonymous on February 25, 2010
  92. science

    The gravitational force of the Earth in relation to the gravitational force of everything else on Earth represents a(n) _____ that causes everything to all toward the center of the earth. Is the answer unbalanced force; balanced force; centrifugal force;

    asked by Ann on November 3, 2009
  93. As physics

    In a hockey match a hockey ball is hit 18m from the front of the goal. The ball leaves the hockey stick with initial velocity v at angle theta to the horizontal ground. The ball passes over the goal at a maximum height of 2.0m. The initial vertical

    asked by cylinder on November 7, 2017
  94. Physics

    The large disk-shaped flywheel illustrated below has a radius R of 0.25 m. It is made to spin by the small wheel that contacts it at its rim. The small wheel applies a constant force of 1430 N. Friction in the bearing exerts a retarding torque 22 Nm on the

    asked by Beth on November 7, 2016
  95. Physics

    A bullet of mass 10 g hits a target and penetrated 2 cm in to it if the average resistance offered by target is 100 N then the velocity with which the bullet hits the target is ?

    asked by Tamanna on August 2, 2015
  96. physics

    A 2.00 kg ball moving to the right at 10.0 m/s makes an off-center collision with a stationary 3.00 kg ball. After the collision, the 2.00 kg ball is deflected upward at an angle of 30o from its original direction of motion and the 3.0 kg ball is moving at

    asked by brett on March 25, 2016
  97. Physics

    A 1200 kg car pulls an 820 kg trailer over a rough road. The force of friction acting on the trailer is 650 N [backwards]. Calculate the force that the car exerts on the trailer if (a) the trailer is moving at a constant velocity of 30 km/h [forward] (b)

    asked by Jenuson on November 16, 2014
  98. Math

    Melanie can paint a 100 square foot wall in 4 hours. James can paint the same area in 3 hours. If they both paint nonstop for 6 hours, about how many square feet can Melanie and James paint together?

    asked by anthony on March 9, 2014
  99. calculus

    A 20 ft ladder is leaning against the side of a house. If the bottom of the ladder is moving away from the house at the rate of 2 feet per second, how fast is the top of the ladder moving down the wall when the bottom of the ladder is 12 feet from the

    asked by Diana on March 16, 2011
  100. math

    - Using each of the ten digits 0,1,..9 just once, is it possible to form positive integers whose sum is exactly 100? - The only timepiece owned by a man was a wall clock which had stopped because he had forgotten to wind it. In the afternoon, he wound it

    asked by KMTRENd on February 3, 2010