Question

A force of 200 Newton acts on a body of mass 2 kg for 10 second.
Find the final velocity and linear momentum of the body?​

Answer 1

Force = mass × acceleration

F=10N

m=2kg

then,

$a = \frac{F}{M} = \frac{10}{2} = 5 {ms}^{2}$

(i) Now,

u=0

t=3sec

v=u+at=0+3×5=15m/s

(ii)Initialmomentum=mu=2×0=0

Finalmomentum=mv=2×15=30kg−m/s

Change in momentum=Final momentum -

Initial momentum

=30−0=30kg−m/s