Multiple choice

A force of 400 N is applied to the brake drum of 0.5 m diameter in a band brake system as shown in the figure where the wrapping angle is 1800. If the coefficient of friction between the drum and the band is 0.25, the braking torque applied (in Nm) is

  1. 100.6

  2. 54.4

  3. 22.1

  4. 15.7
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

$= (400 - 182.68) \times 0.25 = 54.33Nm $

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