Asked by Daniel Reinsnes
A 55 kg skier is at the top of a slope that is 10.0 m high.
a) Set the zero level for gravitational potential energy at the bottom of the slope and find the gravitational potential energy for the skier at the top and the bottom of the slope. What is the PE difference between these two points?
b) Now repeat this calculation with the zero level at the top of the slope.
c) Repeat this problem with the zero level midway down the slope, at a height of 5.0 m.
a) Set the zero level for gravitational potential energy at the bottom of the slope and find the gravitational potential energy for the skier at the top and the bottom of the slope. What is the PE difference between these two points?
b) Now repeat this calculation with the zero level at the top of the slope.
c) Repeat this problem with the zero level midway down the slope, at a height of 5.0 m.
Answers
Answered by
Shubham
A) PE of a=mgh=55×9.8m/sec sq×10=5390J B) PE of a=0, PE of b= -5390J C) PE ofa=55kg×9.8m/sec sq×5.0=2695J
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