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Five balls are placed one after the other along a straight line as shown in the figure. Initially, all the balls are at rest. Then the second ball has been projected with speed v0 towards the third ball. Mark the correct statements, (Assume all collisions to be head-on and elastic.)
24
Sep
Five balls are placed one after the other along a straight line as shown in the figure. Initially, all the balls are at rest. Then the second ball has been projected with speed v0 towards the third ball. Mark the correct statements, (Assume all collisions to be head-on and elastic.) (Assume all collisions to be [...]
Three balls A,B and C of masses 2 kg, 4 kg and 8 kg , respectively, move along the same straight line and in the same direction, with velocities 4 m/s, 1 m/s, 3/4 m/s. If A collides with B and subse-quently B collides with C, find the velocity of ball A and ball B after collision, taking the coefficient of restitution as unity.
24
Sep
Three balls A,B and C of masses 2 kg, 4 kg and 8 kg , respectively, move along the same straight line and in the same direction, with velocities 4 m/s, 1 m/s, 3/4 m/s. If A collides with B and subse-quently B collides with C, find the velocity of ball A and ball B [...]
A particle of mass m comes down on a smooth inclined plane from point B at a height of h from rest. The magni-tude of change in momentum of the particle between position A (just before arriving on horizontal surface) and C (assuming the angle of inclination of the plane as θ with respect to the horizontal) is
24
Sep
A particle of mass m comes down on a smooth inclined plane from point B at a height of h from rest. The magni-tude of change in momentum of the particle between position A (just before arriving on horizontal surface) and C (assuming the angle of inclination of the plane as θ with respect to [...]
A block of mass m starts from rest and slides down a frictionless semi-circular track from a height h as shown. When it reaches the lowest point of the track, it collides with a stationary piece of putty also having mass m. If the block and the putty . stick together and continue to slide, the maximum height that the block-putty system could reach is
24
Sep
A block of mass m starts from rest and slides down a frictionless semi-circular track from a height h as shown. When it reaches the lowest point of the track, it collides with a stationary piece of putty also having mass m. If the block and the putty . stick together and continue to slide, [...]
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A block of mass m starts from rest and slides down a frictionless semi-circular track from a height h as shown. When it reaches the lowest point of the track ,
it collides with a stationary piece of putty also having mass m. If the block and the putty . stick together and continue to slide ,
the maximum height that the block-putty system could reach is ,
A ball of mass m is released from rest relative to elevator at a height h, above the floor of the elevator. After making collision with the floor of the elevator it rebounces to height h2. The coefficient of restitution for Collision is e. For this situation, mark the correct statement(s).
24
Sep
A ball of mass m is released from rest relative to elevator at a height h, above the floor of the elevator. After making collision with the floor of the elevator it rebounces to height h2. The coefficient of restitution for Collision is e. For this situation, mark the correct statement(s). A ball of mass [...]
A particle at rest is constrained to move on a smooth horizontal surface. Another identical particle hits the fractional particle with a velocity v at an angle θ=60∘ with horizontal. If the particles move together, the velocity of the combination just after impact is equal to
24
Sep
A particle at rest is constrained to move on a smooth horizontal surface. Another identical particle hits the fractional particle with a velocity v at an angle θ=60∘ with horizontal. If the particles move together, the velocity of the combination just after impact is equal to A body X with a momentum p collides with [...]
Two identical balls of equal masses A and B, are lying on a smooth surface as shown in the figure. Ball A hits the ball B (which is at rest) with a velocity v = 16 m/s. What should be the minimum value of coefficient of restitution e between A and B so that B just reaches the highest point of inclined plane?
24
Sep
Two identical balls of equal masses A and B, are lying on a smooth surface as shown in the figure. Ball A hits the ball B (which is at rest) with a velocity v = 16 m/s. What should be the minimum value of coefficient of restitution e between A and B so that B [...]
A ball released from a height ho above a horizontal surface rebounds to a height h1, after one bounce. The graph that relates h0 to h1 is shown Fig. If the ball (of the mass m) was dropped from an initial height h and made three bounces, the kinetic energy of the ball immediately after the third impact with the surface was
24
Sep
A ball released from a height ho above a horizontal surface rebounds to a height h1, after one bounce. The graph that relates h0 to h1 is shown Fig. If the ball (of the mass m) was dropped from an initial height h and made three bounces, the kinetic energy of the ball immediately after [...]
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A ball released from a height ho above a horizontal surface rebounds to a height h1 ,
after one bounce. The graph that relates h0 to h1 is shown Fig. If the ball (of the mass m) was dropped from an initial height h and made three bounces ,
the kinetic energy of the ball immediately after the third impact with the surface was ,
A ball falls vertically on to a floor with momentum p, and then bounces repeatedly. If the coeffient of resititution is e, then the total momentum imparted by the ball on the floor till the ball comes to rest is
24
Sep
A ball falls vertically on to a floor with momentum p, and then bounces repeatedly. If the coeffient of resititution is e, then the total momentum imparted by the ball on the floor till the ball comes to rest is A ball falls vertically on to a floor with momentum p and then bounces repeatedly. [...]
A ball is dropped from a height of 45 m from the ground. The coefficient of restitution between the ball and the ground is 23. What is the distance travelled by the ball in 4th second of its motion. Assume negligible time is spent in rebounding. Let g=10 m s^2
24
Sep
A ball is dropped from a height of 45 m from the ground. The coefficient of restitution between the ball and the ground is 23. What is the distance travelled by the ball in 4th second of its motion. Assume negligible time is spent in rebounding. Let g=10 m s^2 A body X with a [...]