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An object, moving with a speed of 6.25 m...

An object, moving with a speed of 6.25 m/s, is decelerated at a rate given by `(dv)/(dt) = -2.5sqrtv` where v is the instantaneous speed. The time taken by the object, to come to rest, would be

A

2 s

B

4 s

C

8 s

D

1 s

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The correct Answer is:
A
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