plz anybody solve this question
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Answer:
(a). 4t/3
Explanation:
Case 1 : When velocity reduces by (3/4) of initial velocity .
v = u - (3/4)u = u/4
We know that :
- v = u-at
- u/4= u - at
- (3/4)u = at
- u = 4at/3
Now, when velocity is 0 :
- v' = u' - at'
- 0 = (1/4)u - at'
- t' = (u/4a)
- = (4at/3*4a) = t/3
So total time = t + t/3 = 4t/3
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