Find the initial velocity of the car which is stopped in 10 sec by applying brakes .The retardation due to brakes is 2.5m/sec sq.....
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u=? v=0m/s t=10sec a= -2.5m/s^2
therefore by first law of motion equation
v=u + at
0 = u -25
therefore....u=25m/sec
therefore by first law of motion equation
v=u + at
0 = u -25
therefore....u=25m/sec
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