- #1
mrjoe2
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Homework Statement
no one gave correct help the first time i sent this out. if you can't do it, don't worry.
a 100g granite cube slides down a 40 degree frictionless ramp. at the bottom, just as it exits onto a horizontal table, it collides with a 200 g steel cube at rest, how high above the table should the granite cube be released to give the steel cube a speed of 150cm/s
Homework Equations
energy equations, momentum equations
The Attempt at a Solution
do not assume this is straight forward. i am a first year university student with a lot of physics behind me and i can't get the solution. i tried posting it before, but no one could get the correct answer. before you help, please post your answer.
i used regular equivalent momentums before and after then subbed in the remaining velocity into the energy equations to yield h. sounds simple huh? try it.