A boy throws a ball up into the air with a speed of 12.3 m/s. The ball has a mass of 0.25 kg. How much gravitational potential energy will the ball have at the top of its flight? (Assume there is no air resistance.)

Answer 1

same as the KE at the start:
1/2 * .25 * 12.3^2

Answer 2

what do you get from the answer because i get 30

Answer 3

18.9 J

Answer 4

18.9 J !!!! #APEX