Question

A body of mass 25 kg has a momentum of 125 kg metre per second what is its velocity

Answer 1

We know that, 
                      momentum(p) = mass(m) * velocity(v)
                      => 125 = 25 * v
                      => 125/25 = v
                      => 5 meter per second = v
Hence, the velocity of the body is 5 m/s .

Answer 2

Mass of the body, m = 25 kg

Momentum p = 125 kg.m/s

p = m x v

125=25*v

v=5m/s

Velocity of the body is 5 m/s