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## Homework Statement

13.49 The flatbed railway car travels at the constant speed of 80 km/h around a curve

of radius 55m and the bank angle 15deg. Determine the smallest static coefficient of friction between the crate and the car that would prevent the crate of mass M from sliding.

## Homework Equations

## The Attempt at a Solution

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Am I at the right track? If yes how do I proceed?