Question

A constant force of 100newton acting on a body of mass 20 kg.Find distance covered and velocity acquired in 2 sec if body start from rest.??

Answer 1

Given : F=100N

m=20Kg

We know F= m*a

a=F/m= 100/20=5m/s^2

Given:t=2s

Since body is initially at rest u=0

We know,

v=u+at

=0+5×2

=10m/s

And ,

s= ut+1/2at^2

=0+(1/2)5×2×2

=5×2

=10m