Question

F

You want to move some boxes down from a truck using a ramp as support. One box has a mass of 50 kg. You are holding it with a force F equal to 100 N. Friction is present and the coefficient of kinetic friction is 0.2.   The angle θ = 30o
Determine the acceleration of the box.

A) zero

B) 2.8 m/s2 downward

C) 1.2 m/s2 downward

D) 3.0 m/s2 downward

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Answer #1

solution: F N(Normal fonce ) F = loon I kinetic friction * force mg cosa mgsing (g = 9.8 m/s² - acceleration nnnnnnnn1111111

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