Question

A body of man 10 kg has a momentum of 100 kgm/s. Its velocity is equal to,

(A)1000 m/s (B)10 m/s (C)1 m/s (D)5 m/s

Answer 1

Answer is B
p=mv
m=10 kg=10000g
p=100 kgm/s=100000 gm/s
therefore,p=mv
or,          v=p/m
                =100000/10000
                =10m/s 
Therefore,velocity is 10m/s.
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Answer 2

p = momentum = mass * velocity
     100 kg m/sec = 10 kg * velocity
        v = 10 m/sec