a 40.0 kilogram child exerts a 100 newton force on a 50.0 kilogram object the magnitude of the force that the object exerts on the child is?
A) 0.0N
B) 80.0N
C) 100N
D) 125N

Respuesta :

Answer:

The answer is choice C.

Explanation:

According to Newtons third law of motion, the force that object exerts on the child is equal and opposite to the force that the child exerts on the object:

[tex]F_{child}=-F_{object}[/tex]

Thus if the child exerts a force of 100 newtons on the object, the object must also exert a force of 100 newtons on the child but in the opposite direction.

The magnitude of the force the object exerts on the child is 100 N.

The given parameters;

  • mass of the child, m = 40 kg
  • force exerted by the child, F = 100 N
  • mass of the object = 50 kg

According to Newton's third law of motion, for every action there is an equal and opposite reaction.

  • The magnitude of the force the child exerted on the object is equal to the force the object exerted on the child.
  • The direction of these forces are opposite.

Thus, the magnitude of the force the object exerts on the child is 100 N.

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