Arturo O. answered • 01/21/18

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T = the pull, assumed to be parallel to the surface of the plane

Net force parallel to plane = mass x acceleration, with acceleration along the surface of the plane

T - mg sinθ - μmg cosθ = ma

T = ma + mg(sinθ + μcosθ)

T = m[a + g(sinθ + μcosθ)]

Plug in the numbers for m, a, g, μ, and θ, and get your answer in newtons.

Arturo O.

The height will not affect the acceleration. It will be constant. Since there is no T when the rope breaks, the box will start to slide down, under acceleration of gravity, opposed by friction. The magnitude of the downward acceleration parallel to the plane can be found from

ma = mg sinθ - μmg cosθ

a = g(sinθ - μ cosθ)

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01/21/18

Seyda S.

01/21/18