Question

A truck traveling at 54 km/h is slow down to 36 km/h in 10 sec. Find the retardation



answer

Answer 1

first convert the km/hr to m/s

So 54km/hr=15m/s and 36km/hr=10m/s

Acceleration = change in velocity/Time

====>(10-15)/10=-0.5m/s

The negative symbol indicates the reardation or decceleration

So the answer is -0.5m/s

Hope ths helps you

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