Question

The bus starts from rest . If it's speed increase to 20 metre/sec acceleration at a uniform rate of 2.5 metre/sec square . Find the time interval​

Answer 1

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Avg speed × total times = total distance

20×25=500

Since acceleration in the 1st interval is same as deceleration in the 3rd interval and deceleration is from the same velocity achieved after acceleration, t¹

your answer is 15 second

Answer 2

Question

The bus starts from rest . If it's speed increase to 20 metre/sec acceleration at a uniform rate of 2.5 metre/sec square . Find the time interval​

Ans

15 seconds