A 1520-N crate is to be held in place on a ramp that rises at 30.0° above the horizontal (see figure)

The massless rope attached to the crate makes a 22.0° angle above the surface of the ramp. The coefficients of friction between the crate and the surface of the ramp are µk = 0.450 and µs = 0.650. The pulley has no appreciable mass or friction. What is the MAXIMUM weight w that can be used to hold this crate stationary on the ramp?

What will be an ideal response?


Answer: 1380 N

Physics & Space Science

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