Question

Calculate the force exerted on a body of mass 10 kg for 2 seconds, which raises
its from 3 m/s to 15 m/s

Answer 1

Explanation:

force= mass ×acceleration

aceelaration = 15-3/2

= 12/2

=6 m/s^2

force = 10×6

=60N

Answer 2

Given :-

• Initial velocity of a body (u)= 3m/s

• Final velocity (v)= 15m/s

• Time (t)= 2 seconds

• Mass of body (m) =10kg

To find :-

The Force exerted on a body

Formula used: F= ma

Acceleration= v-u/t

ma= 10*(12/2)

=10*6

=60

therefore  Force exerted on the body is 60 N