A 7.0 kg bowling ball moves at 2.40 m/s. How fast must a 2.60 g Ping-Pong ball move so that the two balls have the same kinetic energy?

Answer 1

(1/2)( 7) (2.4)^2 = (1/2) (.0026) v^2

v^2 = 7*2.4^2/.0026

Answer 2

124.5m/s