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If a body of mass m collides head on, el...

If a body of mass m collides head on, elastically with velocity u with another identical boday at rest. After collision velocty of the second body will be

A

Moving body comes to rest and body at rest starts moving .

B

Both the bodies continue moving

C

Both the bodies move at right angle after the collision .

D

Kinetic energy after collision is less than before collision .

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Option (a) is correct when collision is head on . But when collision is oblique then both the objects . Moreover, component of velocity of moving object before collision , along the line of centres is transferred to the other body at rest whereas other component remains with moving body , so both the bodies will be moving at right angles after kinetic energy before and after the elastic collision are equal so options (a) , (b) and (c ) are correct .
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