Question

A certain force acting on a 10kg mass changes its velocity from 4 m/s to 2 m/s. calculate the work done by the force.

Answer 1

Answer:

-120J

Explanation:

u= 4m/s

v=2m/s

m=10kg

work done= m (v+u)(v-u)

10(6)(-2)

-120J