Question

The momentum of a body is changed by 20kg in 0.5 s.What is force applied

Answer 1

Answer:

Given:

The momentum of a body is changed by 20 kg m/s in ½ sec.

To find:

Force experienced by the body.

Concept:

Force is defined as rate of change of momentum with respect to time.

So, F = ∆P/∆T ,

where F is the force, ∆P is the momentum change and ∆T is the time.

Calculation:

F = ∆P/∆T

=> F = 20/½

=> F = 40 N.

So the answer is 40 Newton.