Two masses are connected by a pulley as shown on the right. Mass 2 is on an incline (w/ a coefficient of static friction μs which forms an angle θ with the horizontal.

If the two masses are equal, what is the minimum value of μs which will the keep the system in equilibrium at rest? Express your answer in terms of m, θ, and g.

Question

Two masses are connected by a pulley as shown on the right. Mass 2 is on an incline (w/ a coefficient of static friction μs which forms an angle θ with the horizontal.

If the two masses are equal, what is the minimum value of μs which will the keep the system in equilibrium at rest? Express your answer in terms of m, θ, and g.

anonymous · Answer

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 μs= (m_1g)/(m_2gcosθ)

This is what I got, can anyone check if I have it correct?