Part C The skier hits a snowdrift and penetrates 3.0 m into it before coming to a stop. What is the magnitude of the average force exerted on her by the snowdrift as it stops her? Express your answer in newtons to three significant figures. Hνα ΑΣφ ? F = N

Physics for Scientists and Engineers: Foundations and Connections
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Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 63PQ: A 75.0-g arrow, fired at a speed of 110 m/s to the left, impacts a tree, which it penetrates to a...
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THIS QUESTION IS NOT GRADED. I only need part B and C, thank you. 

Part C
The skier hits a snowdrift and penetrates 3.0 m into it before coming to a stop. What is the magnitude of the average force exerted on her by the
snowdrift as it stops her?
Express your answer in newtons to three significant figures.
?
F =
Transcribed Image Text:Part C The skier hits a snowdrift and penetrates 3.0 m into it before coming to a stop. What is the magnitude of the average force exerted on her by the snowdrift as it stops her? Express your answer in newtons to three significant figures. ? F =
A 60.0 kg skier starts from rest at the top of a ski slope
65.0 m high.
Part A
If frictional forces do -11.0 kJ of work on her as she descends, how fast is she going at the bottom of the slope?
Express your answer in meters per second to three significant figures.
v = 30.1 m/s
Submit
v Correct
Part B
Now moving horizontally, the skier crosses a patch of soft snow where u = 0.23. If the patch is 82.0 m wide and the average force of air
resistance on the skier is 160 N, how fast is she going after crossing the patch?
Express your answer in meters per second to three significant figures.
v = 21.6
m/s
Part C
Transcribed Image Text:A 60.0 kg skier starts from rest at the top of a ski slope 65.0 m high. Part A If frictional forces do -11.0 kJ of work on her as she descends, how fast is she going at the bottom of the slope? Express your answer in meters per second to three significant figures. v = 30.1 m/s Submit v Correct Part B Now moving horizontally, the skier crosses a patch of soft snow where u = 0.23. If the patch is 82.0 m wide and the average force of air resistance on the skier is 160 N, how fast is she going after crossing the patch? Express your answer in meters per second to three significant figures. v = 21.6 m/s Part C
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