1) Determine the average braking torque to be applied to stop the vehicle of mass 1.5 ton is moving down the hill at a slope of 1:7 at 60 kmph and the vehicle is to be stopped at a distance of 50 m. Take the diameter of the vehicle tyre as 500 mm. If the friction energy is momentarily stored in a 20 kg cast iron brake drum, what is the average temperature rise of the drum? The specific heat for cast iron may be taken as 520 J/kg ˚C.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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1) Determine the average braking torque to be applied to stop the vehicle of mass 1.5 ton is moving
down the hill at a slope of 1:7 at 60 kmph and the vehicle is to be stopped at a distance of 50 m.
Take the diameter of the vehicle tyre as 500 mm. If the friction energy is momentarily stored in a
20 kg cast iron brake drum, what is the average temperature rise of the drum? The specific heat for
cast iron may be taken as 520 J/kg ˚C.

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