A car of mass 2000kg moving at a velocity of 40ms is brought to rest through 100m. Find:-
(i) loss in kinetic energy,
(ii) Force exerted by the brakes.
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Answer: The energy (e) of a mass to energy conversion equals the mass (m) that was converted multiplied by the speed of light (c) squared. If we choose mass in kilograms and the speed of light in meters per second, then the answer will be in Joules.
Explanation:
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