View Full Version : a simple energy question that needs answering.
ruby_duby
Nov30-03, 11:09 AM
Explain what is happening to energy when a rubber ball is dropped and bounces.
What does the ball eventually stop bouncing?
Can anybody help me with this question?[g)]
potential thinker
Nov30-03, 11:13 AM
the potential energy of the ball is being changed into kinetic, and it loses energy when it hits the floor every time. i think thats right?
ceptimus
Nov30-03, 11:43 AM
With a perfectly elastic ball in a vacuum, it would bounce for ever:
gravitational PE <--> kinetic energy <--> spring (deformed elastic ball) PE
(PE = potential energy)
In reality, energy is lost in (at least) three ways: air resistance losses, sound energy, and heat energy when the ball is deformed.
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