Question
Asked Oct 31, 2019
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A wooden box containing several objects slides down a ramp at a constant speed when the ramp is inclined at 18°. The total mass of the box and its contents is 6.3 kg. A second box of equal mass slides down a different ramp at a constant speed. The second ramp is inclined at 26°. Compare the coefficients of friction of the two ramps. Explain reasoning (I need help with which forces act in certain spaces and why)

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Expert Answer

Step 1

Box moving with constant velocity hence, the net force on the box is zero.

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mg sin 'mg cos mg

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Step 2

So,

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Fnet =mgsin 0-F 0 mg sin e- F mg sin 0 F mg sin 0 FN mg sin 0 mg cose = tan e

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Step 3

For wooden box, θ=180˚

For second box, θ=25˚...

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