The block brake consists of a pin-connected lever and
Chapter 8, Problem 8-7(choose chapter or problem)
The block brake consists of a pin-connected lever and friction block at B. The coefficient of static friction between the wheel and the lever is \(\mu_s = 0.3\), and a torque of \(5\ N \cdot m\) is applied to the wheel. Determine if the brake can hold the wheel stationary when the force applied to the lever is (a) P = 30 N, (b) P = 70 N.
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