A motor car is moving with a velocity of 30 metre per second and it takes 4 seconds to stop after the brakes are applied. Calculate the force exerted by the brakes on the motor car, if its mass along with the passengers is 1000 kg.
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Step-by-step explanation:
a=0-30/4=-15/2=7.5m/sec^2
force =1000*7.5=7500N
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