Physics, asked by futuredr50, 11 months ago

plz anybody solve this question

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Answers

Answered by streetburner
1

Answer:

(a). 4t/3

Explanation:

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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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