Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Three blocks are placed on smooth horizontal surface and lie on same horizontal straight line. Block 1 and block 3 have mass m each and block 2 has mass M(M>>m). Block 2 and block 3 are initially stationary, while block 1 is initially moving towards block 2 with speed v as shown. Assume that all collisions are head on and perfectly elastic. What value of M/m ensures that block 1 and block 3 have the same final speed?
24
Sep
Three blocks are placed on smooth horizontal surface and lie on same horizontal straight line. Block 1 and block 3 have mass m each and block 2 has mass M(M>>m). Block 2 and block 3 are initially stationary, while block 1 is initially moving towards block 2 with speed v as shown. Assume that all [...]
In the above, suppose that the smaller ball does not stop after collision, but continues to move downwards with a speed = υ0 / 2 after the collision. Then, the speed of each bigger ball after collision is
24
Sep
In the above, suppose that the smaller ball does not stop after collision, but continues to move downwards with a speed = υ0 / 2 after the collision. Then, the speed of each bigger ball after collision is but continues to move downwards with a speed = υ0 / 2 after the collision. Then In [...]
Three blocks are initially placed as shown in the figure. block A has mass m and initial velocity v to the right. Block B with mass m and block C with mass 4m are both initially at rest. Neglect friction. All collisions are elastic. The final velocity of block A is
24
Sep
Three blocks are initially placed as shown in the figure. block A has mass m and initial velocity v to the right. Block B with mass m and block C with mass 4m are both initially at rest. Neglect friction. All collisions are elastic. The final velocity of block A is (Assume all collisions to [...]
In the figure shown, the two identical balls of mass M and radius R each, are placed in contact with each other on the frictionless horizontal surface. The third ball of mass M and radius R/2, is coming down vertically and has a velocity =v0 when it simultaneously hits the two balls and itself comes to rest. Then, each of the two bigger balls will move after collision with a speed equal to
24
Sep
In the figure shown, the two identical balls of mass M and radius R each, are placed in contact with each other on the frictionless horizontal surface. The third ball of mass M and radius R/2, is coming down vertically and has a velocity =v0 when it simultaneously hits the two balls and itself comes [...]
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are placed in contact with each other on the frictionless horizontal surface. The third ball of mass M and radius R/2 ,
each of the two bigger balls will move after collision with a speed equal to ,
In the figure shown ,
is coming down vertically and has a velocity =v0 when it simultaneously hits the two balls and itself comes to rest. Then ,
the two identical balls of mass M and radius R each ,
After a totally inelastic collision, two objects of the same mass and same initial speeds are found to move together at half of their initial speeds. The angle between the initial velocities of the objects is
24
Sep
After a totally inelastic collision, two objects of the same mass and same initial speeds are found to move together at half of their initial speeds. The angle between the initial velocities of the objects is After a totally inelastic collision two objects of the same mass and same initial speeds are found to move [...]
Two blocks A and B of masses m and 2m, respectively are connected by a spring of force constant k. The masses are moving to the right with uniform velocity v each, the heavier mass leading the lighter one. The spring is in the natural length during this motion. Block B collides head on with a third block C of mass m, at rest, the collision being completely inelastic. Calculate the maximum compression of the spring.
24
Sep
Two blocks A and B of masses m and 2m, respectively are connected by a spring of force constant k. The masses are moving to the right with uniform velocity v each, the heavier mass leading the lighter one. The spring is in the natural length during this motion. Block B collides head on with [...]
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at rest ,
respectively are connected by a spring of force constant k. The masses are moving to the right with uniform velocity v each ,
the collision being completely inelastic. Calculate the maximum compression of the spring. ,
the heavier mass leading the lighter one. The spring is in the natural length during this motion. Block B collides head on with a third block C of mass m ,
Two blocks A and B of masses m and 2m ,
A ball of mass m is attached to a cord of length L, pivoted at point O, as shown in Fig. The ball is released from rest at point A, swings down and makes an inelastic collision with a block of mass 2m kept on a rough horizontal floor. The coefficient of restitution of collision is e=2/3 and coefficient of friction between block and surface is After collision, the ball comes momentarily to rest at C when cord makes an angle of θ with the vertical and block moves a distance of 3L/2 on rough horizontal floor before stopping. The values of μ and θ are, respectively,
24
Sep
A ball of mass m is attached to a cord of length L, pivoted at point O, as shown in Fig. The ball is released from rest at point A, swings down and makes an inelastic collision with a block of mass 2m kept on a rough horizontal floor. The coefficient of restitution of collision [...]
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(Assume all collisions to be head-on and elastic.) ,
A ball of mass m is attached to a cord of length L ,
all the balls are at rest. Then the second ball has been projected with speed v0 towards the third ball. Mark the correct statements ,
as shown in Fig. The ball is released from rest at point A ,
Five balls are placed one after the other along a straight line as shown in the figure. Initially ,
pivoted at point O ,
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 [...]