1. A daredevil on a motorcycle leaves the end of a ramp with a speed of 35 m/s. If his speed is 33 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance.(adsbygoogle = window.adsbygoogle || []).push({});

I don't know how to approach this problem or set it up? Do I use vectors?

2. Three objects with masses m1 = 5.0 kg, m2 = 10 kg, and m3 = 15 kg, respectively, are attached by strings over frictionless pulleys. The horizontal surface is frictionless and the system is released from rest. Using energy concepts, find the speed of m3 after it moves down a distance of 4.0 m.

There is a diagram showing m2 in the middle of the table and m1 & m3 hanging off of opposite ends.

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# Homework Help: Potential Energy Questions - I'm lost, help!

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