Q1
A mass m moves with a velocity v and collides in elastically with another identical mass. After collision the 1st mass moves with velocity
Q2
A body of mass m moving with velocity v collides head on another body of mass 2m which is initially at rest. The ratio of KE of colliding body before and after collision will be
Q3
Consider the following statements A and B and identify the correct answer.
(A) In an elastic collision, if a body suffers a head on collision with another of same mass at rest, the first body comes to rest while the other starts moving with the velocity of the first one.
(B) Two bodies of equal mass suffering a head on elastic collision merely exchanges their velocities.
Q4
1 kg body explodes into three fragments. The ratio of their masses is 1: 1: 3. The fragments of same mass move perpendicular to each other with speed
Q5
A body of mass 4 kg moving with velocity
Q6
A bomb is kept stationary at a point. It suddenly explodes into two fragments of masses 1 g and 3 g. the total KE of the fragments is
Q7
A body moving with a velocity v, breaks up into two equal parts. One of the part retraces back with velocity v. Then, the velocity of the other part is
Q8
Four smooth steel balls of equal mass at rest are free to move along a straight line without friction. The first ball is given a velocity of
Q9
Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the struck particle moves in directions making angles
Q10
A body of mass m is at rest. Another body of same mass moving with velocity v makes head on elastic collision with the first body. After collision the first body starts to move with velocity
one direction and with equal velocities.
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opposite directions with different velocities.
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one direction with different velocities.
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opposite directions with equal velocities.
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