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A car accelerates uniformly from rest. I...

A car accelerates uniformly from rest. If the reading on the speedometer after 5 s is 72 km `h^(-1)`, determine the acceleration of the car.

Text Solution

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`u=0, v=72 kmh^(-1)"72 35"ms^(-1)20ms^(-1)`
`:.` acceleration `=(v-u)/(t)=(20-0)/(5)=4 ms^(-2)`
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