Question

Yiu thriw a ball with a mass of 2.1 kg.The ball leaves you hand at 30m/s The ball has ___________energy

WITH SOLUTION PLSSS​

Answer 1

Explanation:

You have just given the ball kinetic energy, which is given by the following equation:

Ek = 0.5*m*v²

So the energy the ball has the moment after you hit it is:

Ek = 0.5*2.1*(30)²

Ek = 945 J