Question

A 200-kg crate is moved across a frictionless floor by applying a net force of 70 N for 5 seconds. This results in a final speed of 3 m/s after the crate moves a distance of 5m. What is the final kinetic energy of the crate?

Answer 1

KE=(mv^2)/2 = (200*3^2)/2 = 900J

Answer 2

The above is corect

Answer 3

The above is correct.