elastic collision physics?

B

beverly

New member
A ball strikes a second ball at rest in an elastic collision. If the mass of the first ball is 29 kg and the mass of the second is 2.5 kg, to the nearest tenth of a m/s, if the first ball is initially traveling at 10.7 m/s, what is the velocity of the second ball after the collision?
 
kenetic energy is concerved, thats all you need to know to work this out.

ps. thats total KE = 1/2 mv^2 before = 1/2 mv^2 after

then use algebra to get rid of most of that, rearrange to equal what you dont have, bang in the numbers and your done.
 
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