Question : An object, moving with a speed of 6.25 m/s, is decelerated at a rate given by ππ£ ππ‘ = β2.5βπ£ where π£ 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) 1s
Answer : option (A)
Solution :
