Collisions
PHXI06:WORK ENERGY AND POWER

355269 A small sphere and a big sphere are released from rest with a very small gap from height \(h\) as shown in the figure. The mass of bigger sphere is very large as compared to the mass of smaller sphere. Assume that the collision is perfectly elastic. Find maximum height reached by the smaller sphere after collision.
supporting img

1 2\(h\)
2 4\(h\)
3 6\(h\)
4 9\(h\)
PHXI06:WORK ENERGY AND POWER

355270 Assertion :
In elastic collision, total mechanical energy is conserved.
Reason :
Kinetic energy is always conserved in any collision.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI06:WORK ENERGY AND POWER

355271 A body of mass \(M\) moves with velocity \(v\) and collides elastically with another body of mass \(m\) \((\mathrm{M}>>\mathrm{m})\) at rest then the velocity of body of mass \(m\) is

1 \(2 v\)
2 \(v / 2\)
3 Zero
4 \(u\)
PHXI06:WORK ENERGY AND POWER

355272 Two particles of masses \(m\) and 2 \(m\) moving in opposite directions collide elastically with velocities \(v\) and \(2 v\) respectively. The velocity of 2 \(m\) after collision is:

1 1.1 \(v\)
2 \(v\)
3 \(1.5 v\)
4 Zero
PHXI06:WORK ENERGY AND POWER

355269 A small sphere and a big sphere are released from rest with a very small gap from height \(h\) as shown in the figure. The mass of bigger sphere is very large as compared to the mass of smaller sphere. Assume that the collision is perfectly elastic. Find maximum height reached by the smaller sphere after collision.
supporting img

1 2\(h\)
2 4\(h\)
3 6\(h\)
4 9\(h\)
PHXI06:WORK ENERGY AND POWER

355270 Assertion :
In elastic collision, total mechanical energy is conserved.
Reason :
Kinetic energy is always conserved in any collision.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI06:WORK ENERGY AND POWER

355271 A body of mass \(M\) moves with velocity \(v\) and collides elastically with another body of mass \(m\) \((\mathrm{M}>>\mathrm{m})\) at rest then the velocity of body of mass \(m\) is

1 \(2 v\)
2 \(v / 2\)
3 Zero
4 \(u\)
PHXI06:WORK ENERGY AND POWER

355272 Two particles of masses \(m\) and 2 \(m\) moving in opposite directions collide elastically with velocities \(v\) and \(2 v\) respectively. The velocity of 2 \(m\) after collision is:

1 1.1 \(v\)
2 \(v\)
3 \(1.5 v\)
4 Zero
PHXI06:WORK ENERGY AND POWER

355269 A small sphere and a big sphere are released from rest with a very small gap from height \(h\) as shown in the figure. The mass of bigger sphere is very large as compared to the mass of smaller sphere. Assume that the collision is perfectly elastic. Find maximum height reached by the smaller sphere after collision.
supporting img

1 2\(h\)
2 4\(h\)
3 6\(h\)
4 9\(h\)
PHXI06:WORK ENERGY AND POWER

355270 Assertion :
In elastic collision, total mechanical energy is conserved.
Reason :
Kinetic energy is always conserved in any collision.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI06:WORK ENERGY AND POWER

355271 A body of mass \(M\) moves with velocity \(v\) and collides elastically with another body of mass \(m\) \((\mathrm{M}>>\mathrm{m})\) at rest then the velocity of body of mass \(m\) is

1 \(2 v\)
2 \(v / 2\)
3 Zero
4 \(u\)
PHXI06:WORK ENERGY AND POWER

355272 Two particles of masses \(m\) and 2 \(m\) moving in opposite directions collide elastically with velocities \(v\) and \(2 v\) respectively. The velocity of 2 \(m\) after collision is:

1 1.1 \(v\)
2 \(v\)
3 \(1.5 v\)
4 Zero
PHXI06:WORK ENERGY AND POWER

355269 A small sphere and a big sphere are released from rest with a very small gap from height \(h\) as shown in the figure. The mass of bigger sphere is very large as compared to the mass of smaller sphere. Assume that the collision is perfectly elastic. Find maximum height reached by the smaller sphere after collision.
supporting img

1 2\(h\)
2 4\(h\)
3 6\(h\)
4 9\(h\)
PHXI06:WORK ENERGY AND POWER

355270 Assertion :
In elastic collision, total mechanical energy is conserved.
Reason :
Kinetic energy is always conserved in any collision.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI06:WORK ENERGY AND POWER

355271 A body of mass \(M\) moves with velocity \(v\) and collides elastically with another body of mass \(m\) \((\mathrm{M}>>\mathrm{m})\) at rest then the velocity of body of mass \(m\) is

1 \(2 v\)
2 \(v / 2\)
3 Zero
4 \(u\)
PHXI06:WORK ENERGY AND POWER

355272 Two particles of masses \(m\) and 2 \(m\) moving in opposite directions collide elastically with velocities \(v\) and \(2 v\) respectively. The velocity of 2 \(m\) after collision is:

1 1.1 \(v\)
2 \(v\)
3 \(1.5 v\)
4 Zero