# physics

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A box slides down a 33° ramp with an acceleration of 1.38 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.

• physics -

Component of force along the plane (downward), F
= mgsin(θ)

Let frictional force be ff, then
ff=μmgcos(θ)

Net acceleration
(F-ff)/m = 1.38 m/s²

Solve for μ

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