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.

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.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.73P: The normal pressure acting on the disk of the sander is given by p=(4/3)+(r2/6), where p is the...

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