# A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic frictions are 0.23 and 0.12 respectively. What is the minimum magnitude of the force F, parallel to the

22,562 questions, page 52
1. ## English

I urgently need to revise this paragraph about a program called "Lost". 1) Lost was first transmitted (broadcast) by ABC in 2004. It was soon very popular because of its unusual plot. 2) Lost is the story of the survivors of a plane crash in the Pacific

asked by Henry2 on November 24, 2011
2. ## Physics

A military jet fighter plane flying at 180m/s pulls out of a vertical dive by turning upward along a circular path of radius 860m. What is the acceleration of the plane? Express the acceleration as a multiple ofg.

asked by Anonymous on September 16, 2015
3. ## trig

A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 4 mi apart, to be x = 27° and y = 53°, as shown in the figure. (Round your answers to two decimal places.) (a) Find the distance of the plane from point

asked by stellar on September 30, 2011
4. ## Physics

A cargo plane is flying horizontally at an altitude of 11.2 km with a constant speed of 1260 km/hr when a large crate slides out of the rear of the plane. How long does it take the crate to hit the ground? The acceleration of gravity is 9.81 m/s 2 . Answer

asked by Michelle on October 27, 2014
5. ## physics

This question is also frustrating me. I just don't a single clue how to do it. A pilot must fly his plane north with a speed of 550 km/hr. A wind of 138 km/hr is blowing at an angle of 31 degrees N of E . What speed does the plane need to keep the desired

asked by Marie on October 8, 2014
6. ## Physics

A 28.0kg block is connected to an empty 1.80kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.41 and the coefficient of kinetic friction between the table and the block is 0.35.

asked by Ashley on September 25, 2009
7. ## Physical Science

A 28.0kg block is connected to an empty 1.80kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.41 and the coefficient of kinetic friction between the table and the block is 0.35.

asked by Brittany on September 28, 2009
8. ## H. Physics 11th grade

while flying over the grand canyon, the pilot slows the plane down to one-half the velocity in item 3. If the wind's velocity is still 75 km/h toward the southeast, what will the plane's new resultant velocity be?

asked by Abby on September 29, 2010
9. ## math

A plane makes an 900-mile flight in 3 1/3 hours against a strong head wind, but returns in 50 minutes less with the wind. What is the plane's speed without the wind?

asked by gisela on November 21, 2014
10. ## physics

A 3 kg block is attached to an ideal spring with a force constant k=200 N/m. The block is given an initial velocity in the positive direction of magnitude u= 12 m/s and no initial displacement (xi=0). Find a) the amplitude, b) the phase angle, and c) write

asked by Scott on April 16, 2018
11. ## physics

A 0.150 kg block moving vertically upward collides with a light vertical spring and compresses it 4.50cm before coming to rest. If the spring constant is 54.0 N/m, what was the initial speed of the block? (Ignore energy losses to sound and other factors

asked by Ramon on December 18, 2009
12. ## PHYSICS

while exploring a cave, a spelunker starts at the entrance and moves the following distances in a horizontal plane. she goes 75.0 m north, 250 m east, 125 m at an angle theta equal to 30.0 north of east, and 150 m south. find her resultant displacement

asked by JOAN on November 20, 2012
13. ## Physics

A 69 kg roller blader, is on a frictionless surface at rest, he then tosses a 4.0 kg rock that has a velocity given by v=3i+4jm/s, the axes are both in the horizontal plane. Find the x component and y component of the subsequent velocity of the roller

asked by Jacob on April 7, 2009
14. ## cook

I want to know wat all the weighing equipment is

asked by dylan on February 4, 2014
15. ## physics

rank higest to lowest air drag? 1)a 5lb lead block teraveling at 95% terminal speed. 2a 5lb styrofoam block at terminal speed? 3)a10lb styrofoam block traveling faster than terminal speed? 4)a 10lb styrofoam block at terminal speed? put in orderfrom least

asked by taylur on January 26, 2012
16. ## Chemistry 2

36.) Suppose a chemistry student discoveres that a block of pure ice is left on her porch as she goes to school one day. What will be the percent composition of the pure ice block?

asked by Sam on September 9, 2015
17. ## physics

A 5.0 kg block of some unknown material is suspended from a spring scale and submerged in water.? The spring scale reads 39.3 N. What is the specific gravity of the block? I get 5051.5 kg/m^3 but its incorrect.

asked by Joseph on June 27, 2012
18. ## Physics

A 15 kg concrete block fell from a height of 20 meters and hits the ground below. If all of its original potential energy (PE) goes to the heat the block when it hits the ground, what is its change in terperature?

asked by Gloria on December 19, 2010
19. ## science

(c) Because static friction can adjust, the system can be at rest if the mass of block C is between some maximum value and some minimum value. What are these values if the coefficient of static friction between block B and the table is 0.200?

asked by xxxxxxx on January 6, 2016
20. ## Physics

A person lifts a 5.2 kg cement block a vertical distance 1.2 m and then carries the block horizontally a distance 7.3 m. Determine the work done by the person and by the force of gravity in this process.

asked by Mike on January 9, 2012
21. ## Physics

A 0.15kg bullet is fired into a 1.85kg block that is hanging from a 45cm string. What minimum initial bullet speed is required if the bullet and block are to make one complete revolution? Please show all work. I need this question answered as soon as

asked by Sarah on January 13, 2016
22. ## physics

a block slides down a frictionless ramp. at the bottom of the ramp is a vertical circular loop with a radius of 75 cm. from what minimum height does the block need to be released in order to make it around the loop?

asked by kassy on October 12, 2016
23. ## physics

Let's say you measure an average acceleration to be 0.44 ms-2. What is the height (in centimeters) of the riser block? Assume the legs of the track span 1.0000 m and that there is neither friction nor drag. Also assume the block is under one of the legs.

asked by anthony on October 27, 2014
24. ## shakhenbi

a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.

asked by tomba on August 19, 2011
25. ## physics

A 13 g bullet traveling 235 m/s penetrates a 2.0 kg block of wood and emerges going 171 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges? in m/s

asked by Anup on March 13, 2011
26. ## physics

a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.

asked by tomba on August 19, 2011
27. ## Calculus

A plane flying horizontally at an altitude of 2 mi and a speed of 420 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 5 mi away from the station.

asked by Callie on October 13, 2015
28. ## MAA Global Science

A lump of ice falls from a jet plane as it tries to land at an airport. If the ice hits the ground with a vertical speed of 85m/s, what was the height of the plane when the ice fell off.

asked by Jacob on December 13, 2013
29. ## Calc

A plane flying horizontally at an altitude of 2 mi and a speed of 420 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 5 mi away from the station.

asked by Callie on October 13, 2015
30. ## calculus

a plane flying horizontally at an altitude of 2 mi and a speed of 460 mi/h passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 5 mi away from the station.

asked by L.J on November 17, 2011
31. ## mechanics

A man begins to climb up a 12-ft ladder . The man has mass 80 kg, while the ladder has mass 10 kg. The wall against which the ladder rests is very smooth, which means that the tangential (vertical) component of force at the contact between ladder and wall

asked by sana on December 6, 2015
32. ## math trigonometry

1. Two straight roads intersect to form an angle of 75". Find the shortest distance from one road to a gas station on the other road 10o0 m from the junction. 2. Two buildings with flat roofs are 60 m apart. From the roof of the shorter building, 40 m in

asked by mikee on January 4, 2013
33. ## math

Flying with no wind, a plane makes a 600 km trip in 3h. On the return trip, the plane flies with a 50 km/h tailwind. What is the total trip time?

asked by Aaron on September 18, 2012
34. ## Physics

A child's game consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. By compressing the spring, the child can launch the ball up the ramp. The spring has a spring constant k, the

asked by rachel on November 7, 2008
35. ## physics

A 28.0 block is connected to an empty 2.20 bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.44 and the coefficient of kinetic friction between the table and the block is 0.35. Sand

asked by xxx on October 31, 2011
36. ## Physics

A block of iron at 415°C is put into a 0.625 kg tub of water at 15.0°C. They come to equilibrium at 100°C, and 0.144 kg of the water boils off to steam. What is the mass of the iron block? Please help, it keeps saying I have the wrong answer.

asked by HELP PLEASE ASAP on June 3, 2015
37. ## Physics

A block of mass 2.5 kg hangs vertically from a frictionless pulley of mass 6.5 kg and radius 16 cm. Treat the pulley as a disk. Find: a) the acceleration of the block b) the tension in the rope I don't even know where to begin,

asked by Ana on November 27, 2016
38. ## Physics

Figure 6-24 shows an initially stationary block of mass m on a floor. A force of magnitude 0.540mg is then applied at upward angle 16 degrees. What is the magnitude of the acceleration of the block across the floor if (a)Us=.6 and Uk=.5 and (b) Us=.4 and

asked by Stan on March 3, 2010
39. ## Physics

A 13g bullet traveling 330 m/s penetrates a 2.0 kg Block of wood and emerges going 270 m/s . If the block is stationary on a frictionless surface when hit how fast does it move after the bullet emerges?

asked by Anonymous on December 12, 2013
40. ## Khan

A person lifts a 4.3 kg cement block a vertical distance of 1.3 m and then carries the block horizontally a distance of 5.3 m. The acceleration of gravity is 9.81 m/s 2 . a) Determine the work done by the person in the process. Answer in units of J

asked by Hajib on November 15, 2011
41. ## physics laws of motion

a block of mass 300kg is set into motion on a frictionless horizantal surface with help of frictionless pulley and a rope system.what horizantal force F should be applied to produce an acceleration of 1m/s in block

asked by shail on October 17, 2014
42. ## Physics

A hanging block of mass X is pressed with a force F at angle theta to the vertical against a frictionless wall and is connected to another hanging block of mass Y by a pulley system. What is the expression for the acceleration of Y?

43. ## Physics

A bullet of mass 50g is fired with a velocity of 200m/s in to a block of mass 950g at rest. Given the block can more firely, calculate: 1) the kinetic energy after impact 2) the lose of energy

asked by OLANREWAJU on June 26, 2018
44. ## physics

A 23- bullet traveling 230 penetrates a 3.6 block of wood and emerges cleanly at 170 . If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

asked by pat on October 14, 2011
45. ## Physics

A 13 g bullet traveling 226 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 162 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

asked by Anonymous on February 16, 2011
46. ## Physics

A 1.7kg block and a 2.7kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley that is 28cm in diameter and has a mass of 0.74kg .

asked by Sarah on January 31, 2011
47. ## Physics

A 23 g bullet traveling 220 m/s penetrates a 4.2 kg block of wood and emerges cleanly at 140 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

asked by Linda on November 10, 2010
48. ## physics

A block of mass 200g and density 0.8g/cm3 is submerged in a liquid of density 0.2g/cm3. find minimum force required to keep the block floating.

asked by Narayanan on February 11, 2012
49. ## physics

A block with a mass of 0.306 kg is attached to a spring of spring constant 444 N/m. It is sitting at equilibrium. You then pull the block down 4.50 cm from equilibrium and let go. What is the amplitude of the oscillation?

asked by taylor on October 26, 2016
50. ## physics

A bullet of mass 100g is fired at avelocity 100m/s into a wooden block of mass 900g.If the bullet gets embeded into the block,then what would be the velocity of the system?

asked by meenu on April 21, 2014
51. ## math

Calculate the new coordinates of a block rotated about x axis by an angle of = 30 degrees. The original coordinates of the block are given relative to the global xyz axis system. A(1, 1, 2) B(2, I, 2) C(2, 2, 2) D(1, 2, 2) E(1, 1, 1) F(2, 1, 1) G(2, 2,1)

asked by Goms on January 19, 2015
52. ## physics

an initially stationary block of mass m on a floor. A force of magnitude 0.540mg is then applied at upward angle of 16. What is the magnitude of the acceleration of the block across the floor if (a)Us=0.6 and Uk=0.5 and (b)Us=0.4 and Uk=0.3 ?

asked by beav on February 27, 2010
53. ## Physics

A bullet of mass 35g strikes a stationary wooden block of mass 2.6kg, becomes embedded in the block, and they both move off at 7.5m/s. What was the original velocity of the bullet?

asked by Sarah on May 9, 2012
54. ## physics

With a block of mass m , the frequency of a block-spring system is 1.8Hz. When 50g is added, the frequency drops to 1Hz . Find m and the spring constant.

asked by kara on February 13, 2017
55. ## Math

A wooden block that is a rectangular prism is 12 inches long. Melinda cuts the wooden block along its length into 4 cubes. How long is each side of the cube?

asked by Jeany on November 5, 2011
56. ## Math

A wooden block that is a rectangular prism is 12 inches long. Melinda cuts the wooden block along its length into 4 cubes. How long is each side of the cube?

asked by Dina on November 4, 2011
57. ## physics

A 0.40-kg block slides along a small track with elevated ends and a flat central part. The flat part has a length L = 1.84 m. The curved portions of the track are frictionless, but for the flat part the coefficient of kinetic friction is 0.132. The block

asked by Katie on February 22, 2012
58. ## college physics

A 0.50-kg block slides along a small track with elevated ends and a flat central part. The flat part has a length L = 1.85 m. The curved portions of the track are frictionless, but for the flat part the coefficient of kinetic friction is 0.103. The block

asked by jerry on March 25, 2012
59. ## maths

a cube has a lenght of 16cmby12cm height of 10cm with angles z,q,p,w,s,v,r and x.find the angle between z,q and the base p,q,r,s,.2.the angle between zq and the vertical plane p,w,z,s to 1 decimal place.the angle between plane p,q,r,s and w,q,r,z to the

asked by golda on April 14, 2016
60. ## Physics

A spring with a spring constant of 22.0 N/cm has a block attached to one end and the other end is fixed. How much work does the spring do on the block if the spring is stretched from relaxed length by 6.8 mm as the block is moved? How much additional work

asked by Matt on October 9, 2016
61. ## PHYSICS

a block of a material of volume 20cmand density 2.5cm is suspended frm a spring balance wit half of the vol of the block immersed in a water,what is the reading of a spring balance?

asked by ZAKKA on July 2, 2016
62. ## PHYSICS!

A 3.6-kilogram block sliding down a ramp from a height of 4.6 meters above the ground reaches the ground with a kinetic energy of 37 joules. The total work done by friction on the block as it slides down the ramp is approximately: [1 d.p.]

asked by Purti on February 7, 2011
63. ## Physics

A 3.9-kilogram block sliding down a ramp from a height of 5.2 meters above the ground reaches the ground with a kinetic energy of 36 joules. The total work done by friction on the block as it slides down the ramp is approximately

asked by Anonymous on February 24, 2010
64. ## Physics

A 3.6-kilogram block sliding down a ramp from a height of 4.6 meters above the ground reaches the ground with a kinetic energy of 37 joules. The total work done by friction on the block as it slides down the ramp is approximately: [1 d.p.]

asked by Anonymous on February 7, 2011
65. ## physics

A 3.3-kilogram block sliding down a ramp from a height of 4.5 meters above the ground reaches the ground with a kinetic energy of 35 joules. The total work done by friction on the block as it slides down the ramp is approximately: [1 d.p.]

asked by jon on February 14, 2011
66. ## Physics

A 4.2-kilogram block sliding down a ramp from a height of 4.5 meters above the ground reaches the ground with a kinetic energy of 33 joules. The total work done by friction on the block as it slides down the ramp is approximately:

asked by Ashley on February 13, 2011
67. ## Physics

A bullet is fired horizontally and penetrates into a block of wood. The block and bullet then move together after impact. Explain the total linear momentum and total kinetic energy of the system before and after the collision

asked by Sarah on January 18, 2018
68. ## Physics

A 50 g ball of clay traveling at speed v0 hits and sticks to a 1.0 kg block sitting at rest on a frictionless surface. A) What is the speed of the block after the collision? B) What percentage of the ball's initial energy is "lost"?

asked by Trevor on June 2, 2014
69. ## physics 111 "2"

1 A stone thrown from ground level returns to the same level 4 s after. With what speed was the stone thrown? Take 20 m/s 10 m/s 30 m/s 15 m/s 2 What is common to the variation in the range and the height of a projectile? time of flight vertical

asked by Cali franco on April 24, 2015
70. ## Calculus

A fully plane has a constant acceleration while moving down a runaway. the plane requires .7 mile of runaway and a speed of 160 miles per hour in order to lift off. what is the planes accelearation? i need the formula cause the one i have doesnt work cause

asked by Nancy on December 8, 2009
71. ## trig

a plane is flying with airspeed of 140 mph and heading 280 degrees. The wind currents are running at 20mph at 260 degrees clockwise from due north. Find the true course and ground speed of the plane.

asked by Frankie on August 19, 2011
72. ## Physics

An airplane flies at a constant speed in a straight line. A bale of hay is dropped from the bottom of the plane to some cattle in a snowstorm. When the bale hits the ground, where is the plane? (Ignore air resistance) Explain your answer!

asked by Bethany on November 21, 2014
73. ## physics EM

Ive tried multiple answers but cant get it right. Which of the following changes would induce an electromotive force (emf) in the loop? When you consider each option, assume that no other changes occur. a. The magnitude of B_vec increases. b. The magnitude

asked by Spencer on April 6, 2008
74. ## PHYSICS SPECIFIC GRAVITY

A 6.8 kg block of some unknown material is suspended from a spring scale and submerged in water. The spring scale reads 48.0 N. What is the specific gravity of the block?

asked by Chris on April 25, 2016
75. ## physics

A block of wood weighs 40 N in air and 30 N in water. What is the buoyant force exerted by water on the block? B = -F_g = B-F_g =30-40 = - 10N Is this correct?

asked by Tammy on December 3, 2007
76. ## physics

A block of wood weighs 40 N in air and 30 N in water. What is the buoyant force exerted by water on the block? B = -F_g = B-F_g =30-40 = - 10N Is this correct?

asked by Tammy on December 3, 2007
77. ## Physics

A cubical block of steel of side 'a ' and density 'p'floats on mercury of density with a part of it being submerged. The height of the block above the Mercury level is given by

asked by Vidhi on July 27, 2016
78. ## physics

a glass block weighs 25N in air . when whole immersed in water, the block weighs 15N. calculate the relative density of glass

asked by zari on September 19, 2016
79. ## Physical Science

A block is dragged at constant velocity in a straight-line path across a level surface by a force of 6N. What is the force of friction between the block and the surface?

asked by dorothy on April 1, 2009
80. ## PIPS

A block of mass, 10 kg, collides with a spring with a spring constant of 200 N/m at a speed of 12 m/s compressing the spring. When the block stops moving, how far is the spring compressed?

asked by Bilal on August 18, 2016
81. ## Physics

A block measuring 0.1m x 0.4m x 1.5m has a mass of 30kg. Calculate the pressure in each position and state in which position will the block produce greatest and least pressure on the ground.

asked by OHara on June 7, 2013
82. ## physics

A balistic pendulum is made from a block of wood with a mass of 2.78 kg. A bullet with a mass of 39 g is shot into the block causing it to rise 29.1 cm. What was the speed of the bullet?

asked by dean on February 9, 2014
83. ## Physics

A 26.0 kg block is connected to an empty 1.00 kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.490 and the coefficient of kinetic friction between the table and the block is

asked by Millie on November 18, 2011
84. ## maths

the plane has seats for 420 passengers 15% of the seats are empty how many passangers are on the plane?

asked by teemo on September 5, 2011
85. ## Math

Point A lies in plane B. How many lines can be drawn perpendicular to plane B through point A?

asked by Christa on October 16, 2013
86. ## Math - distance b etween a line and plane

Find the distance between the parallel line and the plane. line: vector r = [2,0,1]+t[1,4,1] plane: 2x-y+2z=4

asked by Shaila on August 28, 2010
87. ## Vectors

Find the scalar equation of the plane through the points M(1,2,3) and N(3,2,-1) that is perpendicular to the plane with equation 3x + 2y + 6z +1 = 0.

asked by bobby on October 11, 2018
88. ## Physics

A 3 kg block collides with a massless spring of spring constant 90 N/m attached to a wall. The speed of the block was observed to be 1.5 m/s at the moment of collision. The acceleration of gravity is 9.8 m/s^2. How far does the spring compress if the

asked by I Need Help on April 8, 2014
89. ## Physics

A 10kg block is released from the top of a ramp 45m high. the track is frictionless except for a 6m stretch in the middle. when the block reaches the end, it compresses the k=2250N/m spring a distance of 0.030m. Find the coefficient of friction over the

asked by Dakota HELP!! Assignment due within 30mts!!! on April 25, 2012
90. ## physics

A 10kg block is released from the top of a ramp 45m high. the track is frictionless except for a 6m stretch in the middle. when the block reaches the end, it compresses the k=2250N/m spring a distance of 0.030m. Find the coefficient of friction over the

asked by Anonymous on April 24, 2012
91. ## physics

a 2 kg frictionless block is attached to an ideal spring with force constant 300N/m. at t=0 the spring is neither stretched nor compressed and the block is moving in the negative direction at 12m/s. find a) the amplitude and b) the phase angle, c) write a

asked by junah on February 4, 2015
92. ## physics

a block of stone has a density of 2.75 g/cm3. the block has a mass of 3.30 kg. it measures 6.00 cm wide by 8.00 cm high by L cm long. if i found L to be 68.6927cm by doing m=D*V, is that right? Also if it was in fresh water (density=1000kg/cm^3), would the

asked by maxamillion on December 6, 2017
93. ## calculus

A plane flies horizontally with a speed Of 600km/h at an altitude of 10km and pasess directly over th town of quinton .find the rate at which the distance from the plane to quinton is increasing when its 20km away from quinton ?

asked by mehak on March 12, 2011
94. ## Calculus

A plane flies horizontally with a speed Of 600km/h at an altitude of 10km and pasess directly over th town of quinton .find the rate at which the distance from the plane to quinton is increasing when its 20km away from quinton ?

asked by Mehak on March 12, 2011
95. ## physics

A thin uniform stick having a mass of 0.680 kg and a length of 1.50 m is at rest, hanging vertically from a strong, fixed hinge at the uppermost end of the stick. The stick is free to swing back and forth in an Up-Down-East-West plane. Suddenly, the

asked by HALP on November 30, 2012
96. ## Physics

two forces act concurrently on a 5kg block resting on a smooth horizontal surface a 5N force making a 40degree angle with the surface and a 10n making a 20degree angle with the surface. A) Determine the magnitude and direction of the net force acting on a

asked by Edward on July 18, 2011
97. ## physics

A 40 kg skier comes directly down a frictionless ski slope that is inclined at an angle of 10 degrees with the horizontal while a strong wind blows parallel to the slope. Determine the magnitude and diercection of the force of the wind on the skier id a)

asked by Bri on November 21, 2006
98. ## physics

A 40 kg skier comes directly down a frictionless ski slope that is inclined at an angle of 10 degrees with the horizontal while a strong wind blows parallel to the slope. Determine the magnitude and diercection of the force of the wind on the skier id a)

asked by Dee on November 25, 2006
99. ## physics

Consider a frictionless track as shown in Figure P6.48. A block of mass m1 = 4.30 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 9.00 kg that is initially at rest. Calculate the maximum height to which m1 rises

asked by luke on July 16, 2010
100. ## physics

Consider a frictionless track as shown in the figure below. A block of mass m1 = 4.25 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 10.0 kg that is initially at rest. Calculate the maximum height to which m1

asked by sam on October 17, 2010