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A normal reaction force acting on a body that is moving up ward direction with an acceleration of 2\, ms^{-2} is 720 N; the Mass of the body is?

Option: 1

60 kg


Option: 2

50 kg


Option: 3

40 kg


Option: 4

30 kg


Answers (1)

best_answer

The reaction force of the body is with the body’s acceleration (when in the lift)

N-Mg=Ma
\Rightarrow N=\frac{720}{10+2}=60Kg

Posted by

vishal kumar

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