COLLISIONS
34. A block of wood of mass 3M is suspended by
10
a string of length 5m. A bullet of mass M
hits it with a certain velocity and gets
embedded in it. The block and the bullet
swing to one side till the string makes 120°
with the initial position. The velocity of the
bullet is (g=10ms?)
40
1) 5ms 2) 20ms
3) 30ms 4) 40ms!
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