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A lift is moving up with a constant velocity of $5 {cms}^{- 1}$ . A bolt is detached
from the lift then its initial velocity is

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9 {cms}^{- 1}

5 {cms}^{- 1}

upward

0 {cms}^{- 1}

5 {cms}^{- 1}

down ward

answer is B.

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Detailed Solution

Given that a lift is moving up with constant velocity

v = 5 {cms}^{- 1}

The velocity of bolt along with lift is obviously $v = 5 {cms}^{- 1}$

As it is detached from the lift it will have same velocity as the lift i.e. $5 {cms}^{- 1}$ .

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