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A student wants to determine the coefficients of static friction and kinetic friction between a box and a plank. She places the box on the plank and gradually raises one end of the plank. When the angle of inclination with the horizontal reaches 28.0°, the box starts to slip and slides 2.53 m down the plank in 3.92 s. Find the coefficients of friction.

A student wants to determine the coefficients of static friction and kinetic friction between a box and a plank. She places the box on the plank and gradually raises one end of the plank. When the angle of inclination with the horizontal reaches 28.0°, the box starts to slip and slides 2.53 m down the plank in 3.92 s. Find the coefficients of friction.

Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
7 years ago
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Therefore, the coefficient of static friction between the plank and the box is 0.53 .
232-1057_1.PNG
Therefore, the coefficient of kinetic friction between the plank and the box is 0.49 .

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