Question

a force acts on a body for 0.5s changing its momentum from 16kgms-1 to 21kgms-1.calculate the magnitude of the force

Answer 1

A force acts on a body for 0.5s changing its momentum from 16kgms-1 to 21kgms-1. Calculate the magnitude of the force.

**Solution**

$$p _ {1} = 1 6 k g \frac {m}{s}$$ $$p _ {2} = 2 1 k g \frac {m}{s}$$ $$t = 0. 5 s$$ $$F = \frac {p _ {1} - p _ {2}}{t} = 1 0 N$$

Answer:

$$F = 1 0 N$$