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A massless inelastic thread passes over ...

A massless inelastic thread passes over a small frictionless pulley. Two identical blocks A and B of mass m = 2kg are attached with the thread. The system is initially at rest. A bullet C also of mass m strikes the block A from below with initial speed u as shown in figure and gets embedded in block A at t = 0 second. Then:
a) Find the velocity of centre of mass system (block A plus bullet C and block B) Just after cxzollision.
b) Time after which the string becomes taut again.

Text Solution

Verified by Experts

The correct Answer is:
`u/3, u/(2g)`
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