a car changes its velocity from 25m/s to 15m/s in 4 seconds find its acceleration?
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acceleration is rate of CHANGE of velocity
a= dv/dt = v2-v1/t= 25-15/4= 2.5m/s²
a= dv/dt = v2-v1/t= 25-15/4= 2.5m/s²
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