A softball of mass 0.220 kg that is moving with a speed of 4.0 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 1.8

59,090 questions
1. physics

A softball of mass 0.220 kg that is moving with a speed of 4.0 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 1.8 m/s. a) Calculate the

asked by Nick on May 30, 2011
2. physics

A softball of mass 0.220 kg that is moving with a speed of 4.0 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 1.8 m/s. a) Calculate the

asked by Nick on May 31, 2011
3. physics

A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 3.9 m/s.

asked by Anonymous on January 10, 2010
4. physics

A softball of mass 0.220 kg that is moving with a speed of 6.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 4.8 m/s.

asked by Shane on December 9, 2009

A softball of mass 0.220 kg that is moving with a speed of 6.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 4.8 m/s.

asked by Anonymous on December 10, 2009
6. physics

A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 3.9 m/s.

asked by Anonymous on January 10, 2010
7. Physics

A softball of mass 0.200 kg that is moving with a speed of 8.2 m/s collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 3.9 m/s. 1. Calculate the velocity of the target ball

asked by Anonymous on November 12, 2009
8. Physics

While warming up in her tryout as a pitcher for the Montwood softball team, Anabel Parga throws a softball horizontally with a speed of 22m/s. a. If home plate is 19m away, how far should the softball fall from its initial straight-line path on its way to

asked by sam on September 16, 2012
9. Physics-check plz

If a pitcher throws a fast ball with a speed of 35 m/s. The ball has a mass of 220 grams. a) how much work was done in throwing the ball? b) If the catcher catches the ball by moving his mitt 15 cm. backward what force did he exert? a.) Throwing the ball

asked by Sasha on June 20, 2014
10. Physics -Conservation of Momentum-

1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

asked by Isis on February 24, 2013
11. Physics -Conservation of Momentum-

1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

asked by Isis on February 24, 2013
12. AP Physics

A racing car travels on a circular track of radius 220 m, moving with a constant linear speed of 48.9 m/s. Find its angular speed. Answer in units of rads/s. I already mutiplied 2π x 220. But I don't know what to do from there? Any help please? Thanks!

asked by Andrew on April 8, 2015
13. Physics ~really need help!~

1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

asked by Isis on February 25, 2013
14. physics

A softball (350g) is thrown with an initial speed of 27m/s. The moment just before the softball hits the ground, VelocityFx = +27m/s and VelocityFy = -36m/s. Determine the final momentum of the softball.

asked by Alex on December 9, 2009
15. physics

You throw a softball (of mass 300 g) straight up into the air. It reaches a maximum altitude of 10.1 m and then returns to you. What is the gravitational potential energy of the softball at its highest position? Assume the ball departed from and returned

asked by ryan on November 7, 2012
16. physics

Calculate the magnitude of the linear momentum for the following cases. (a) a proton with mass 1.67 10-27 kg, moving with a speed of 4.00 106 m/s (b) a 16.5 g bullet moving with a speed of 270 m/s (c) a 70.5 kg sprinter running with a speed of 12.5 m/s (d)

asked by Elisa on July 7, 2008
17. physics

A softball (350g) is thrown with an initial speed of 23 m/s straight upward. What is the maximum potential energy the softball can have?

asked by Sandy on December 9, 2009
18. physical science

Which of the following four bodies has the greatest kinetic energy? a. A body of mass 1 kg moving with speed 1000 m/s. b. A body of mass 2 kg moving with speed 50 m/s c. A body of mass 3 kg moving with speed 50 m/s d. A body of mass 50 kg moving with speed

asked by Fonda on December 15, 2011
19. Physics

I wondered if someone would check my work concerning an Atwood's Machine. (I am led to believe the answers for these two questions should be the same but I'm not coming out that way.)Thank you! 8.) Caluclate the tension in the Atwood's Machine string for

asked by Miaow on September 22, 2012
20. physics

You throw a softball (of mass 300 g) straight up into the air. It reaches a maximum altitude of 17.9 m and then returns to you. What is the gravitational potential energy of the softball at its highest position? Assume the ball departed from and returned

asked by Bob on May 12, 2016
21. Algebra

Amy throws a softball in the air with an initial velocity of 50 feet per second. She throws the softball from a height of 6 feet. The height of the softball, h, is modeled by the function h (t) = -16t^2 + 50t + 6, where t is the time in seconds. How high

asked by Bridge on February 23, 2016
22. physics

A 14 kg body is moving through space in the positive direction of an x axis with a speed of 220 m/s when, due to an internal explosion, it breaks into three parts. One part, with a mass of 6.4 kg, moves away from the point of explosion with a speed of 190

asked by john on March 29, 2011
23. physics

A glider with a mass of 3 kg is moving rightward at a speed of 2 m/s on a frictionless horizontal air track. It collides with a stationary glider whose mass is 18 kg. If the collision is elastic, what is the speed of the gliders after the collision? Use SI

asked by Anonymous on March 12, 2014
24. math

susan throws a softball upward into the air at a speed of 32 feet per second from a 8 foot platform. the distance upward that the ball travels is given by the function. d(t)=-16t^2+32t+8. What is the maximum height of the softball? how many seconds does it

asked by gabby on November 27, 2012
25. Physics B

Part 1 Calculate the magnitude of the linear momentum for each of the following cases: A proton with mass 1.67×10 −27 kg moving with a speed of 5.24 × 10 6 m/s. Answer in units of kg · m/s Part 2 A 15.1 g bullet moving with a speed of 327 m/s. Answer

asked by Mary on November 12, 2012
26. physics

a golf ball of mass 0.045kg is moving in the x-direction with a speed of 9.0 m/s, and a baseball with mass 0.145kg is moving in a negative y-directionwith a speed of 7m/s. what are the magnitude and direction of the total momentum of the system consisting

asked by daisy jean on September 23, 2013
27. physics

One object is at rest and another is moving. The two collide in a one-dimensional, completely inelastic collision. In other words, they stick together and move off with shared velocity. The speed of the object that is moving initially is 25 m/s. The masses

asked by aithusa20 on September 29, 2014
28. Chemistry

A car moving in a straight line at an average speed of 55.0 mi/hr for 4.25 hr has traveled _____. 234 mi 15 mi 13 mi 220 mi

asked by Angela on September 26, 2014
29. biomechanics

Compare the kinetic energies of the following: a) A baseball (mass=0.145kg) moving at 100 km/h. b) A runner (mass = 75 kg) moving at 30km/h. c) A swimmer (mass = 75 kg) moving at 7 km/h. d) A discus (mass = 2 kg) moving at 20 m/s.

asked by anonymous on August 2, 2016
30. physic

a golf ball of mass 0.045 kg is moving in the +x direction with a speed of 9.0 m/s, and a baseball of mass 0.145 kg is moving in the -y direction with a speed of 7.0 m/s. What are the magnitude and direction if the total momentum of the system consisting

asked by jaymark on September 23, 2012
31. physics

A body of mass 5kg moving with a speed of 3m/s collides head on with a body of mass 3kg moving in the opposite direction at speed of 2m/s The first body stops after the collision The final velocity of the second body is Ans:3m/s

asked by Thousif on August 21, 2017
32. Physics

Toy 1, which has a mass of 2 kg, is moving to the right at 3 m/s, and Toy 2, whose mass is unknown, is moving to the left at 3 m/s. After the two toys collide, each object's speed is 3 m/s. What could be Toy 2's mass (choose 2 answers)? A. 1 kg B. 3 kg C.

asked by Anonymous on February 7, 2018
33. Physics

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction as the car at a lower speed v2. (Use any variable or symbol stated above as necessary.) (b) What is the change in kinetic

asked by Joe on March 10, 2014
34. Physics

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction as the car at a lower speed v2. (Use any variable or symbol stated above as necessary.) (b) What is the change in kinetic

asked by Joe on March 12, 2014
35. Physics

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction as the car at a lower speed v2. (Use any variable or symbol stated above as necessary.) (b) What is the change in kinetic

asked by Joe on March 8, 2014
36. Physics

Suppose now that the air carts below are both moving to the right initially. The cart to the left has a mass m1 and an initial speed v0; the cart to the right has an initial speed v0/2. If the center of mass of this system moves to the right with a speed

asked by Carden on April 29, 2010
37. Algebra

During a softball game, a batter hits a ball upward from an initial height of 3 feet. The height, in feet, of the softball is given by s(t)=−16t^2+70t+3 , where t is time in seconds and . Which is closest to the time when the softball will be 50 feet

asked by Samantha on December 5, 2013
38. Physics

Two objects with masses represented by m1 and m2 are moving such that their combined total momentum has a magnitude of 16.3 kg · m/s and points in a direction 71.5° above the positive x-axis. Object m1 is moving in the x direction with a speed of v1 =

asked by Sean on March 2, 2014
39. Physics

an object of mass 3 kg is moving in the positive x-direction with a speed of 10 m/s. A second object of mass 5 kg is moving in the northwest direction with a speed of 8 m/s. If the two stick together after the collision, what is the final velocity

asked by Rick on June 29, 2011
40. Physics

Two pucks collide on a level air-hockey table. Puck A has a mass of 0.0250 kg and is moving initially due eastward at a speed of 5.50m/s. Puck B has a mass of 0.0500kg and is initially at rest. Right after collision, puck A is moving in a direction of 65

asked by John on November 2, 2009
41. physics

Two skaters collide an embrace, in a completely inelastic collision. That is, they stick together after impact. The origin is placed at the point of collision. Alfred, whose mass is 83 kg, is originally moving east with speed 6.2 km/h. Barbara, whose mass

asked by Darlene on November 2, 2017
42. physics

Two skaters collide an embrace, in a completely inelastic collision. That is, they stick together after impact. The origin is placed at the point of collision. Alfred, whose mass is 83 kg, is originally moving east with speed 6.2 km/h. Barbara, whose mass

asked by Ryan on November 3, 2017
43. Physics

A block of mass m1 = 2.4 kg initially moving to the right with a speed of 3.3 m/s on a frictionless, horizontal track collides with a spring attached to a second block of mass m2 = 4.1 kg initially moving to the left with a speed of 1.5 m/s as shown in

asked by Leticia on October 14, 2013
44. Physics

A block of mass m1 = 2.4 kg initially moving to the right with a speed of 3.3 m/s on a frictionless, horizontal track collides with a spring attached to a second block of mass m2 = 4.1 kg initially moving to the left with a speed of 1.5 m/s as shown in

asked by Leticia on October 14, 2013
45. physics

A car moving at a speed of approximately 176.5 km/h. 923 m in front of the car, there is a truck moving at a speed of 84.2 km/h in the same direction. 1.What is the name of the physical process that would occur if both vehicles kept moving at constant

asked by Sandhya on December 2, 2008
46. Physics

Scenario : A truck has a mass of 2000kg and is moving at 50m/s and collides with another truck that has a mass of 2000kg moving at a speed of -20m/s. 1)Is this a sticky or springy collision? 2)What is the total momentum after the collision? 3)If both

asked by Suzy on March 3, 2017
47. Algebra 1- Math

An athletic director is ordering balls for two softball leagues. The 10 year old league uses an 11-inch softball priced at \$2.75. The 12 year old league uses a 12-inch softball priced at \$3.25. The bill smeared in the rain, but he remembered ordering 80

asked by Anonymous on January 30, 2013
48. Physics

Particle 1 of mass 3m initially moving with a speed v0 in the positive x-direction collides with particle 2 of mass m moving in the opposite direction with an unknown speed v.After collision,particle 1 moves along the negative y-direction with speed v0/2

asked by Divya on March 26, 2016
49. Physics

A snooker ball with a mass of 0.3kg moving at 2.5m/s collides with another ball of 0.2kg mass and moving in the same direction with a speed of 1.20m/s . Assuming the collision is elastic, calculate the speed and direction of each ball after collision.

asked by Sarah on January 18, 2018
50. Physics 1

A cart with mass 340 g moving on a frictionless linear air track at an initial speed of 1.5 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. After the collision, the first cart continues in its original direction at

asked by Alex on April 22, 2014
51. Physics

A binary star system consists of two equal mass stars that revolve in circular orbits about their center of mass. The period of the motion, T=29.6 days, and the orbital speed v= 220 km/s of the stars can be measured from telescopic observations. What is

asked by Casey on July 12, 2011
52. Physics

An old Chrysler with mass 1800 kg is moving along a straight stretch of road at 58 km/h. It is followed by a Ford with mass 1400 kg moving at 70 km/h. How fast is the center of mass of the two cars moving?

asked by Teddy on July 20, 2010
53. college physics

A truck of mass 9M is moving at a speed v = 15 km/h when it collides head on with a parked car of mass M. Spring mounted bumpers ensure that the collision is essentially elastic. Find the final velocities of each vehicle. Repeat for the case of the car

54. Physics

Suppose now that the air carts below are both moving to the right initially. The cart to the left has a mass m1 and an initial speed v0; the cart to the right has an initial speed v0/2. If the center of mass of this system moves to the right with a speed

asked by Kelly on April 27, 2010
55. physics

A force given by F(x) = 4x^3 x̂ (in N/m^3) acts on a 1kg mass moving on a frictionless surface. The mass moves from x = 4 m to x = 7 m. (a) How much work is done by the force? (b) If the mass has a speed of 1 m/s at x = 4 m, what is its speed at x = 7 m?

asked by ATT on March 30, 2018
56. physics

A body of mass 10 kg moving at a speed of 4 m/s collides with another body of mass 4 kg at rest. After collision, if the speed of the body of 4kg mass be 5 m/s, the speed of body of 10kg mass shall be?

asked by Satyabrata Saha on May 17, 2015
57. Physics

A car of mass 1100 kg, moving with a speed of 73 mph on a highway, passes a small SUV with a mass 1 1 2 times bigger, moving at 1/2 of the speed of the car. (a) What is the ratio of the momentum of the SUV to that of the car? pSUV pcar = 1 (b) What is the

asked by Sam on October 7, 2010
58. physics

in order to catch a fast moving softball with your bare hand doing this reduce the catching forcebecause the what

asked by cynthia on February 1, 2013
59. physics

A block of mass m1 = 2.4 kg initially moving to the right with a speed of 3.3 m/s on a frictionless, horizontal track collides with a spring attached to a second block of mass m2 = 4.1 kg initially moving to the left with a speed of 1.5 m/s as shown in

asked by Leticia on October 14, 2013
60. physics

A 1500kg car moving at a speed of 20 m/s comes to a halt. How much work was done by the brakes? How fast can a 2.0 horsepower motor lift a 200 kg mass? A boy with a mass of 20 kg is riding on a 10 kg cart which is travelling at 3 m/s. He jumps off in such

asked by G on July 3, 2015
61. Physics

An air-hockey puck of mass m floats across the table essentially frictionless on a cushion of air. This puck bumps nearly head-on into a second puck that has 3 times the mass, moving in the opposite direction but with the same speed, v i , as the lighter

asked by Joe on August 6, 2012
62. Physics

A 1000 kg car is moving at a constant speed of 7 m/s when it hits the back bumper of another car with 1200 kg of mass moving in the same direction at a constant speed of 6 m/s. As a result of the collision both bumpers get coupled. Show all work and

asked by Will on January 6, 2012
63. Physics MOMENTUM

1) A 1 kg moving at 1 m/s ha s a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A 0.010n kg bullet is shot from a 0.500 kg gun at speed of 230 m/s. Find the speed of the gun.

asked by Isis on March 20, 2013
64. physics

a softball is thrown at a speed of 40 miles per hour in a course that makes an angle of 60 degrees with the positive x axis. what is the initial speed in the horizontal direction?

asked by lee on May 18, 2015
65. Physics

Block B has a mass of 4.50kg and is moving to the left at a speed of 4.50m/s. Block A has a mass of 6.50kg and is moving to the right. The two blocks undergo a perfectly inelastic collision. What should the velocity of the Block A be in order to have the

asked by Ashley on October 14, 2016
66. Physics

Block B has a mass of 3.40kg and is moving to the left at a speed of 4.20m/s. Block A has a mass of 6.40kg and is moving to the right. The two blocks undergo a perfectly inelastic collision. What should the velocity of the Block A be in order to have the

asked by Emily on March 23, 2016
67. physics 4a

A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.3 m/s and the tension in the rope is T = 21.8 N. Return to the original mass.

asked by Lis on October 25, 2018
68. physics

A cart of mass 340 g moving on a frictionless linear air track at an initial speed of 1.2 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. After the collision the first cart continues in its original direction at

asked by Chris on March 3, 2007
69. physics

A car of mass m1 = 2000.0kg is moving at speed v1i = 20.0m/s towards East. A truck of mass m2 = 5000.0kg is moving at speed v2i = 10.0m/s towards North. They collide at an intersection and get entangled (complete inelastic collision). 1. What is the

asked by vanessa on April 4, 2018
70. AP Chemistry

(a)calculate the mass percent of carbon in the hydrated form of the solid that has the formula BeC2O4 X 3 H2O (s). I divided 24.02 g by 151.08 g and got .16, or 16%. is that correct? Also, I'm having trouble with this follow up question. When heated to 220

asked by Patrick on September 19, 2007
71. physics - special relativity

When a rocket is moving at a constant speed, it has a relativistic mass that is 60 percent greater than its rest mass. Find the speed of the rocket. **** So far, I tried using the relativistic mass equation.. 0.6m = mv / square root 1-(v/c)2

asked by CL on June 7, 2010
72. Physics

Cart A has a mass of 10kg and is moving towards cart B at a speed of 15 m/s. If cart B is moving towards cart A with a speed of 5 m/s, what mass must Cart B have to stop both carts upon collision?

asked by Danielle on March 26, 2015
73. physics

the wooden crate in the figure below has a mass of 40kg. How much horizontal force is needed to A. start it moving B. to keep it moving along the wood floor at a constant speed

asked by kheith on October 19, 2009
74. physics

A block of mass m = 3.6 kg, moving on a frictionless surface with a speed vi=9.3m/s makes a perfectly elastic collision with a block of mass M at rest. After the collision, the 3.6 kg block recoils with a speed of vf=2.7m/s. In Figure 8.2, the speed of the

asked by terry on November 16, 2012
75. Physics

An old Chrysler with mass 1900 kg is moving along a straight stretch of road at 48 km/h. It is followed by a Ford with mass 1500 kg moving at 65 km/h. How fast is the center of mass of the two cars moving? m1v1 + m2v2= (m1+m2)vcm solve for vcm 55.5

asked by winterWX on February 21, 2007
76. science

A boy and his skateboard have a combined mass of 64 kg. If he is moving with a speed of 3.2 m/s, and collides with a stationary skateboarder whose mass (including his skateboard) is 96 kg, with what speed will the two skateboarders move immediately after

asked by chelsea on February 9, 2013
77. Physics

A 3.50 kg mass, m, on a frictionless table is moving in a circle with radius 0.420 m at a constant speed. m is attached to a 6.40 kg mass, M, by a cord through a hole in the table. Find the speed with which m must move for M to stay at rest.

asked by Ed on February 27, 2012
78. Physics

A 2.40 kg mass, m, on a frictionless table is moving in a circle with radius 0.500 m at a constant speed. m is attached to a 5.70 kg mass, M, by a cord through a hole in the table. Find the speed with which m must move for M to stay at rest

asked by Mike on September 30, 2011
79. physics

One glider with a mass 0.2 kg and a speed of 3.5 m/s traveling east collides with another glider with mass 0.5 kg and a speed of 2.0 m/s moving west. They collide and stick together. Calculate the net mechanical energy and is it a loss or gain?

asked by julia on November 23, 2009
80. Physics

A 3.50 kg mass, m, on a frictionless table is moving in a circle with radius 0.420 m at a constant speed. m is attached to a 6.40 kg mass, M, by a cord through a hole in the table. Find the speed with which m must move for M to stay at rest.

asked by Ed on February 27, 2012
81. Physics

A 4.10 kg mass, m, on a frictionless table is moving in a circle with radius 0.390 m at a constant speed. m is attached to a 5.00 kg mass, M, by a cord through a hole in the table. Find the speed with which m must move for M to stay at rest.

asked by Audrey Riegel on February 22, 2013
82. Physics

Two masses, mass A (1.9 kg) and B (3.3 kg) are hung on either side of a pulley. The masses each have an initial speed of 0.8 m/s, with mass B moving up. How high, in m, does mass B move after being released at this initial speed?

asked by Sahar on April 21, 2016
83. physics

Block A (mass = 3 kg), moving at +5 meters per second, collides with stationary block B (mass = 4 kg). Block A comes to a sudden stop, while block B starts moving. What will be the approximate final speed of block B?

asked by Rachel on June 5, 2017
84. Physics

A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 9.5 g, the mass of the block is 10.5 kg, the

asked by jonathan on November 6, 2013
85. Science

A steel ball A of mass 20.0 kg moving with a speed of 2.0 ms−1 collides with another ball B of mass 10.0 kg which is initially at rest. After the collision A moves off with a speed of 1.0 ms−1 at an angle of 30º with its original direction of motion.

asked by Kalash on March 24, 2019
86. physics

A boy of mass 54.3 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.4 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard. magnitude

asked by Anonymous on February 23, 2011
87. physics

A boy of mass 54.3 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.4 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard. magnitude

asked by Anonymous on February 23, 2011
88. physics

A boy of mass 54.3 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.4 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard. magnitude

asked by Anonymous on February 23, 2011
89. Physics (Energy and Momentum)

A block of mass m1 = 1.00 kg slides along a frictionless table with a speed of 16.0 m/s. Directly in front of it, and moving in the same direction, is a block of mass m2 = 6.00 kg moving at 8.00 m/s. A massless spring with a spring constant k = 1320 N/m is

asked by Andrew on April 17, 2012
90. physicis

A block of mass m1 = 4.00 kg slides along a frictionless table with a speed of 16.0 m/s. Directly in front of it, and moving in the same direction, is a block of mass m2 = 5.00 kg moving at 7.00 m/s. A massless spring with a spring constant k = 1220 N/m is

asked by PCm on April 24, 2013
91. Physics

In an intense battle, gunfire is so intense that bullets from opposite sides collide in midair. Suppose that one (with mass M= 5.12 g moving to the right at a speed V= 214 m/s directed 21.3 degrees above the horizontal) collides and fuses with another with

asked by Casey on June 28, 2011
92. Physics

A boy of mass 49.4 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard.

asked by Kellie on October 16, 2011
93. Physics/Calculus

An automobile with a mass of 1316 kg is parked on a moving flatbed railcar; the flatbed is 1.5 m above the ground. The railcar has a mass of 40,810 kg and is moving to the right at a constant speed v = 8.8 m/s on a frictionless rail. The automobile then

asked by Sarah on October 7, 2010
94. Physics

A boy and his skateboard have a combined mass of 64 kg. If he is moving with a speed of 3.2 m/s, and collides with a stationary skateboarder whose mass (including his skateboard) is 96 kg, with what speed will the two skateboarders move immediately after

asked by Jam on August 14, 2013
95. Physics

An automobile with a mass of 1450 kg is parked on a moving flatbed railcar; the flatbed is 1.50 m above the ground. The railcar has a mass of 38500 kg and is moving to the right at a constant speed of 8.70 m/s on a frictionless rail. The automobile them

asked by Khalid on January 19, 2016

A mass of 6 kg is tied to a 2 meter long rope and is swung in a vertical circle. At the bottom of the circle, the mass is moving at a speed of 16 m/s. What is the tension, in Newtons, in the rope after the mass has traveled to a point exactly halfway

asked by Amanda on October 27, 2011
97. Physics

A blue car with mass mc = 528 kg is moving east with a speed of vc = 17 m/s and collides with a purple truck with mass mt = 1352 kg that is moving south with an unknown speed. The two collide and lock together after the collision moving at an angle of θ =

98. Physics

A 10.6 N force is sufficient to keep a 15 kg mass moving in a circle. How much force in Newtons is needed to keep a 10.7 kg mass moving with the same speed in a circle of the same radius?

asked by Anonymous on May 7, 2018
99. physics

A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 10.5 g, the mass of the block is 10.5 kg the

asked by esther on March 10, 2010
100. physics

A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 10.5 g, the mass of the block is 10.5 kg the

asked by Anonymous on March 10, 2010