Question

What are the forces acting on the boy [mass of boy=M] who is lifting a load of mass m on his head?

Answer 1

Answer:

The forces acting on the boy are:

force of gravity:(M+m)g

normal force:-(M+m)g

Force of load on head:mg

(The boy exerts normal force on the load but it is acting on the load and not the box so I didn't write)

(he is also exerting biological force on the load)

Hope it helps.

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