please give me solution of this question.
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as i think so...3s is correct.
AbhijeetPatel:
it is wrong answer
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In this question we should apply the formula of v2-u2= 2*a*s.
situation 1. initial velocity is v
final velocity is v/3 distance travelled is s
we have to find accn. we get

implies a is -4vsquare/9s
situation 2
final velocity is o initial velocity is v accn is known.. we have to find distance
-v square = -8vsquare/9s * distance
implies distance it travels is 9s i.e option 1
situation 1. initial velocity is v
final velocity is v/3 distance travelled is s
we have to find accn. we get
implies a is -4vsquare/9s
situation 2
final velocity is o initial velocity is v accn is known.. we have to find distance
-v square = -8vsquare/9s * distance
implies distance it travels is 9s i.e option 1
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