a. How much mechanical energy was converted to intemal energy when the skier travels down the slope from point A to point B? Answer in Joules.

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Chapter1: Units, Trigonometry. And Vectors
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Please use at least 4 significant figures throughout the entire problem! Also use 9.80m/s2 for the acceleration due to gravity. DO NOT USE 10 M/S2 FOR THE ACCELERATION DUE TO GRAVITY!

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An 80.0 kg skier starts at the top of a 30.0 m high hill from rest. The hill makes a 15.00 angle
with respect to the horizontal. When the skier reaches the bottom of the hill at point B a friend
measures the skier's speed to be 12.0 m/s. The skier comes to rest at point C.
30 m
150
a. How much mechanical energy was converted to intemal energy when the skier travels down
the slope from point A to point B? Answer in Joules.
Transcribed Image Text:An 80.0 kg skier starts at the top of a 30.0 m high hill from rest. The hill makes a 15.00 angle with respect to the horizontal. When the skier reaches the bottom of the hill at point B a friend measures the skier's speed to be 12.0 m/s. The skier comes to rest at point C. 30 m 150 a. How much mechanical energy was converted to intemal energy when the skier travels down the slope from point A to point B? Answer in Joules.
An 80.0 kg skier starts at the top of a 30.0 m high hill from rest. The hill makes a 15.00 angle
with respect to the horizontal. When the skier reaches the bottom of the hill at point B a friend
measures the skier's speed to be 12.0 m/s. The skier comes to rest at point C.
30 m
150
D
b. What is the coefficient of friction between the ski slope and the skis from point A to point B?
Transcribed Image Text:An 80.0 kg skier starts at the top of a 30.0 m high hill from rest. The hill makes a 15.00 angle with respect to the horizontal. When the skier reaches the bottom of the hill at point B a friend measures the skier's speed to be 12.0 m/s. The skier comes to rest at point C. 30 m 150 D b. What is the coefficient of friction between the ski slope and the skis from point A to point B?
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