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Question

A block of mass 'm' is hanging to a string in an elevator. The elevator is moving up with an acceleration 'a'. What will be the tension in the string?


A
ma
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B
m(g+a)
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C
m(g-a)
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D
mg
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Solution

The correct option is D m(g+a)
If we include the pseudo force and use free body diagram, we have
T = mg+ma

Physics

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