If a ping pong ball and a golf ball are both moving in the same direction with the same amount of kinetic?
energy, the speed of the ping pong ball must be
a) less than the golf ball.
b) more than the golf ball.
c) the same as the golf ball.
d) impossible to predict without additional information.
10 points to correct answer!
b) more than the golf ball.
because:
Kinetic Energy = 1/2mass x velocity^2
KE = 1/2mv^2
If they both have the same Kinetic energy, and a golf ball has a bigger mass, then the ping pong would need a greater speed to equal the energy of the golf ball.
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