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Question A3. The simple brake shown in Fig. A3 has wrap angle 220° and the rotating brake drum radius is 80 mm. A brake force of 90 N is applied via the cable and the coefficient of friction between the brake and the drum is 0.3. The moment of inertia of the rotating drum is 25 kg m³. (a) Calculate the brake torque generated, and (b) How long is the braking time from if the initial rotating speed is 120 rpm. Simple band brake for a minibike Su aon a Fig. A3

Question A3. The simple brake shown in Fig. A3 has wrap angle 220° and the rotating brake drum radius is 80 mm. A brake force of 90 N is applied via the cable and the coefficient of friction between the brake and the drum is 0.3. The moment of inertia of the rotating drum is 25 kg m³. (a) Calculate the brake torque generated, and (b) How long is the braking time from if the initial rotating speed is 120 rpm. Simple band brake for a minibike Su aon a Fig. A3

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question A3. The simple brake shown in Fig. A3 has wrap angle 220° and the rotating brake drum radius is 80 mm. A brake force of 90 N is applied via the cable and the coefficient of friction between the brake and the drum is 0.3. The moment of inertia of the rotating drum is 25 kg m³. (a) Calculate the brake torque generated, and (b) How long is the braking time from if the initial rotating speed is 120 rpm. Simple band brake for a minibike Sourcehtpe/www.iet.compas sS4222/ Fig. A3
Transcribed Image Text:Question A3. The simple brake shown in Fig. A3 has wrap angle 220° and the rotating brake drum radius is 80 mm. A brake force of 90 N is applied via the cable and the coefficient of friction between the brake and the drum is 0.3. The moment of inertia of the rotating drum is 25 kg m³. (a) Calculate the brake torque generated, and (b) How long is the braking time from if the initial rotating speed is 120 rpm. Simple band brake for a minibike Sourcehtpe/www.iet.compas sS4222/ Fig. A3
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