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  • A man standing in a lift carrying a bag of 5 Kg. If lift moves vertically upwards with acceleration g/2 then find tension (in Newton) force in the handle of the bag <img alt="use \ \left ( g=1

A man standing in a lift carrying a bag of 5 Kg. If lift moves vertically upwards with acceleration g/2 then find tension (in Newton) force in the handle of the bag use \ \left ( g=10m/s^{2} \right )

 

Option: 1

75


Option: 2

25


Option: 3

50


Option: 4

100


Answers (1)

best_answer

Given-

Acceleration of the block, a=\frac{g}{2}=5m/s^2

mass of the block, m=5kg

Let the tension in the string be T.

F.B.D of the block-

\\\ Using\ F_{net}=ma\\ T-mg=ma\\ \Rightarrow T=m(g+a)\\ \Rightarrow T=5\times(10+5)=75N

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