Question

a boy applied a force of 15 Newton on a tree, the tree does not move what is the amount of force applied by the tree on the boy?​

Answer 1

Answer:15N but-15N since it's opp in direction of forece applied by boy.

This is according to third law of motion

Answer 2

Answer:

The force applied by the tree on the boy is - 15 N.

Concept:

Newton's third law of motion.

Given:

The force applied by the boy on the tree, F₁ = 15 N

Find:

The force applied by the tree on the boy.

Solution:

According to newton's third law of motion which states that "to every action, there is an equal and opposite reaction", we have

Action force = - Reaction force

In this case, action force = the force applied by the boy on the tree.

reaction force = the force applied by the tree on the boy (Let it be F₂)

∴ F₁ = - F₂

F₂ = - F₁

F₂ = - 15 N

Hence, the force applied by the tree on the boy is -15 N.

-ve sign indicates that the direction is opposite to that of the action force.

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