How to solve this physics problem?

Posted on 2015-11-24 06:50:00 in Physics by BILLY

On an inclined pulley system, block A is at rest on a frictionless incline. Is it attached to block B over a pulley. Block A has a mass of 4.50 kg and Block B has a mass of 5.50 kg. When the system is released (when block B is released), block A moves up the incline 1.5 m, after which it has a speed of 3.00 m/s. Block B moves 1.5 m directly down.

a) What is the change in PE of block A (Answer: 36J)
B) What is the change in height through which block A

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