Question

Q1: if 4s velocity of a body of mass 50kg increases from 2m/s to 10m/s calculate force?

Answer 1

Force = mass × acceleration
= m × (v - u) / t ( as, acceleration is change in velocity per time)
Here v=10m/s u=2m/s m=50kg t=4s
F = 50 × (10 - 2) / 4
=50×2
=100N