Respuesta :
The net force acting on the child is 200N.
What is Net force?
When two or more forces are acting on the system of objects, then the to attain equilibrium, net force must be zero.
The net force acting on the child will be
Net force = Sum of all the individual force with sign
Net force = -100 + 0 + 100 +200
Net force = 200 N.
Therefore, the net force acting on the child is 200 N.
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