1.

A bullet of mass a moving with velocity b strikes a large stationary block of wood of mass c, and remains embed in it, the final velocity of the system is :

Answer»

`(a)/(a+b)C`
`(axxb)/(a+b)`
`(axxb)/(a-c)`
`(a)/(a-c)c`

SOLUTION :Applying CONSERVATION of MOMENTUM `axxb=(a+c)V`
`V=((a)/(a+c))b`


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