Find the initial velocity of a car which is stopped in 10sec by applying brakes . the retardation due to brakes is 2.5 m/s²

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Solution

Initial velocity=?
final velocity=0
time=10
accelaration=-2.5m/s2

a=v-u/t
-2.5=0-u/10
-2.5=-u/10
-2.5*10=-u
-25=-u
25=u

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