A driver decreases the speed of a car from 30m/s to 15m/s in 3s. Find the acceleration of the car.
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Initial velocity or speed u=15m/s
The acceleration a=−0.5m/s2
When vehicle stops its final velocity becomes zero v=0
By applying equation of motion
v2=u2+2aS
0=225−2×0.5SS=2×0.5225=225m
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