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PhysNov9

# PhysNov9 - The water stops her 3 meters under the surface...

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November 9 Physics

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In: A skier of mass 75 kg slides down a frictionless hill of length 50 m and vertical height 25 m . What is the change in her gravitational potential energy? What is her speed at the bottom of the hill?
Objective: To practice conservation of energy problems. Success Criteria: You will be able to set up and solve conservation of energy problems

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Homework check:

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A .5 kg ball is thrown from a height of 2 meters with a speed of 5 m/s. How fast is it going at the bottom of its travel? If it bounces back to a height of 1.5 meters, how fast is it going?
A diver jumps at 2 m/s from a 10 m diving board.

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Unformatted text preview: The water stops her 3 meters under the surface. What was the force of the water? The top of the first hill on this roller coaster is 50 m high. How fast do the cars go at the bottom of the hill? If the diving board is 5 meters above the water, and the 50 kg diver jumps with a speed of 20 m/s, how fast is she going when she hits the water? A cannon ball is shot with a speed of 100 m/s from a 200 m cliff. How fast is it going when it hits bottom? Conservation of Energy Problem set #1: Out: A cannon ball is shot with a speed of 10 m/s from a 100 m cliff. How fast is it going when it hits bottom?...
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