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A car moving on a straight road accelera...

A car moving on a straight road accelerates from a speed of `4.1m//s ` to a speed of `6.9m//s` in `5.0s`. What was its average acceleration ?

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`u=4.1m//s, v=6.9m//s`, time `=t=5sec`
average acceleration
`a=(v-u)/t=(6.9-4.1)/5=0.56ms^(-2)`
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