Question

A constant force of 12.5 N acts on a body for 2 s. Find the change in the linear momentum of the body.

Answer 1

1. Given data:

1. Force is $F=12.5N$
2. Time taken is $t=2s$
3. Change in momentum is $∆p=?$

2. Calculation of the change in the linear momentum of the body

1. Linear momentum can be calculated by using the formula, $F=\frac{changeinthemomentum}{timetaken}$
2. $12.5=\frac{∆p}{2}$
3. $∆p=25N-s$

Hence, the change in the linear momentum of the body is $25N-s$.