Question
Asked Oct 28, 2019
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(a) Calculate the acceleration of a skier heading down a 10° slope, assuming the coefficient of
friction for waxed wood on wet snow uk-0.10. (b) Find the angle of the slope down which
this skier could coast at a constant velocity. You can neglect air resistance in both
4.
parts.
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(a) Calculate the acceleration of a skier heading down a 10° slope, assuming the coefficient of friction for waxed wood on wet snow uk-0.10. (b) Find the angle of the slope down which this skier could coast at a constant velocity. You can neglect air resistance in both 4. parts.

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Expert Answer

Step 1

(a) Consider the free body diagram below.

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f = 4mg cose mg cose ma mg cos mg sin mg

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Step 2

Using Newton’s law, the acceleration is obtained as,

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ma = mg sin 0-mg cose a g (sin -4m cos e) = (9.8m/s2)(sin 10°-0.1 cos 10 0.74m/s2

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Step 3

(b) At constant velocity, acceleration is zero. Using the e...

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g(sin 0-4m cos 0 e= tan (4) tan (0.10) =5.70

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Science

Physics

Kinematics