Question

A body of mass m is moving with a velocity u.  When a force is applied on it for time t, then its velocity increases to v.  Write expressions for

Initial and final momentum
Change of momentum
Rate of change of momentum. 
Also write SI unit for each.
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Answer 1

Intial Momentum : p = mu

Final Momentum : p = mv

Change in momentum : Δp = m(v-u)

SI Unit for momentum : newton-second (Ns)

Answer 2

Explanation:

Mai phir bhi tumko chahunga.......2

missing u