Question

A ball of mass 200 g rolls along the ground at a speed of 5. 2 m/s. Calculate the kinetic energy of the ball. Give your answer to two significant figures.

Answer 1

Answer:

m= 200g

v= 5.2m/s

KE= 1/2mV2

KE= 1/2(200X5.2square)

=. 1/2(5408)

2704j