A car of mass 1 4 0 0 kg travelling at 2 5 m / s on
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Question:
A car of mass kg travelling at ms on a flat road performs an emergency stop and comes to rest. The car is decelerated via friction on steel brake discs of mass kg each, at temperature of 0 Celsius before braking.
Assuming that the car tyres do not skid, the mechanical energy of the car is dissipated as
heat energy shared equally between the discs, and the specific heat capacity of steel is c Joule kg K calculate the temperature of the brake discs when the car stops.
Related Book For
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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