Balancing himself

Classical Mechanics Level 2

A man pulls a rope with force F in order to support the platform on which he stands. The mass of man is 60 kg and that of the platform is 20 kg. The man presses the platform with force N. Then

F = 20 kg wt, N = 40 kg wt F = 20 kg wt, N = 20 kg wt F = 20 kg wt, N = 10 kg wt F = 40 kg wt, N = 20 kg wt

Adhiraj Dutta by Adhiraj Dutta , 18, India

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1 solution

F + N = 60 F+N=60 ...........(1)

3 F − N = 20 3F-N=20 ........(2)

Solving, we get F = 20 F=\boxed {20} kg wt, N = 40 N=\boxed {40} kg wt.

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