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

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

Options :

(a) 1s
(b) 2s
(c) 4 s
(d) 8s

Answer :

(b) 2s

Answer Steps :

Step 1:

Step 2:

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