a 35n force acts on a body of mass 5kg for 2 seconds .

calculate the change in momentum of the body?

Just use your basic formulas

F = ma
So, a = F/m = 25/5 = 7 m/s^2
∆v = at = 7*2 = 14 m/s
∆p = m*∆v = 35*14 = 490 m^2/s

To calculate the change in momentum of an object, you can use the formula:

Change in momentum = force * time

In this case, the force acting on the body is 35 N and the time period is 2 seconds.

Therefore, the change in momentum is:

Change in momentum = 35 N * 2 s
Change in momentum = 70 (N.s) or (kg.m/s)

So, the change in momentum of the body is 70 N.s or kg.m/s.