Need help on letter C

1. A very thoughtful physics student takes her younger sibling to the arcade to play skeeball. She estimates the mass of the skee ball to be about 0.5 kg and the height of the fifty-point ring to be about 1 m above the position from which the ball is released. a. How much gravitational potential energy will the ball have if it hits the fifty-point ring at the highest point? PEg=mgh PEg=(0.5)(9.8)(1) PEg=4.9 J b. How much kinetic energy does the ball need at its release to reach the highest point? KE=4.9 J c. At what velocity must the ball be released to reach the highest point? V=