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An elevator starts from rest with a cons...

An elevator starts from rest with a constant upward acceleration it moves 2m in the first `0.6` second. A passenger in the elevator is holding a 3 kg package by a vertical string When the elevator is moving What is the tension in the string?

A

4 N

B

`62.7 N`

C

`29.4 N`

D

`20.6 N`

Text Solution

Verified by Experts

The correct Answer is:
B

`h=1/2at^(2)`
`a=100/9 m//sec^(2)`
`T=M(g+a)`
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Knowledge Check

  • An elevator is accelerating upwards with a constant acceleration a ms^-2 . If a coin is dropped in it by a passenger, then.

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    the coin starts to fall downwards instantaneously as observed by a ground observer.
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    mg
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    ma
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    mg + ma
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