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A crate of mass M starts from rest at the top of a frictionless ramp inclined at an angle above the horizontal. Find its speed at the bottom of the ramp, a distance from where it started. Do this in two ways.
Take the level at which the potential energy is zero to be at the bottom of the ramp with positive upward.
Take the zero level for potential energy to be at the top of the ramp with positive upward.
Why did the normal force not enter into your solution?
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Our tutors have indicated that to solve this problem you will need to apply the Conservative Forces & Inclined Planes concept. You can view video lessons to learn Conservative Forces & Inclined Planes. Or if you need more Conservative Forces & Inclined Planes practice, you can also practice Conservative Forces & Inclined Planes practice problems.