Answer to Question #285093 in Mechanical Engineering for Johnny

Question

The diameter of a brake drum is 30 cm. the pivot for the brake shoe and the point of

application of the force actuating the shoe are 120 mm each from the axis of rotation.

Assume that the pressure distribution over the brake lining is equal to a single force

acting radially and the coefficient of friction is 0.25. Calculate the braking torque

exerted by an operating force of 900 N on:

i. The leading shoe

ii. The trailing shoe

Answer 1

The answer to your question is provided in the image: