Question

A 25g rock is rolling at a speed of 5 m/s. What is the kinetic energy of the rock?

Answer 1

The answer is 312.5j

Step-by-step explanation:

The kinetic energy (KE):

KE=1/2*m*v^2

M= mass of the object

v= velocity of the object

We have;

m=25g

v=5m/s

KE=1/2*25g*5^2m/s

KE =312.5j