Question
Asked Oct 18, 2019

A 60.0 kg skier with an initial speed of 13 m/s coasts up a 2.50 m high rise as shown in the figure.

Find her final speed right at the top, in meters per second, given that the coefficient of friction between her skis and the snow is 0.37.

check_circleExpert Solution
Step 1

Write an expression using Newton’s second law of motion along the incline

ma mg sin umg cos
a g(sin ucos
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ma mg sin umg cos a g(sin ucos

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Step 2

Substitute the values

a (9.8 m/ssin(35°)+(0.37) cos (35°)]
=8.59 m/s
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a (9.8 m/ssin(35°)+(0.37) cos (35°)] =8.59 m/s

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Step 3

Write the kinematic expressi...

2as u
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2as u

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Tagged in

Science

Physics

Friction

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