Asked by Fallon
A 61.8 kg skier coasts up a snow-covered hill that makes an angle of 26.0° with the horizontal. The initial speed of the skier is 6.10 m/s. After coasting a distance of 1.86 m up the slope, the speed of the skier is 4.48 m/s. Calculate the work done by the kinetic frictional force that acts on the skis.
Answers
Answered by
bobpursley
intialKE-changePE-friction=finalKE
for the change in PE, use the slope distance and sine of the angle to get change in height.
for the change in PE, use the slope distance and sine of the angle to get change in height.
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