Question

Calculate the force acting on an object where change in momentum is 10 kgm/s in 10 seconds.

Answer 1

F=p/t here p= 10kgm/d and t =10 seconds

hence force =10/10=1
I think I m correct

Answer 2

f = dp/dt

given,
dp=10kgm/s
dt=10sec

putting values in formula
f=10/10
f=1 N

:)