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Assertion: If the weight of the lift is equal to the tension force of the cable wire then it moves with uniform velocity
Reason: If the lift moves downward with an acceleration, then the contact force between the boy‘s feet and lift floor is more than the weight of boy

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An Intiative by Sri Chaitanya

Both are true and reason is correct explanation of assertion

Both are true and reason not correct explanation of assertion

Assertion is true reason is false

Reason is true, assertion is false

answer is C.

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Detailed Solution

When a = 0, T = Mg

(Uniform velocity) $∴$ assertion is true

N= m (g-a) = mg-ma
N<mg
$∴$ Reason is false

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