Question

A block of mass 2kg moving on a smooth surface with same speed force F acts on the body for 2s during which it's speed increases by 3m/s .find F

Answer 1

m=2kg

v =3m/s
t= 2sec.
v= u +at

3= 0+a×2

a=3/2

f=ma
f= 2×3/2
f=3 Newton