The wind blows a lawn chair that weighs 4 kg into a fence with a force of 8 N. How much reaction force does the fence exert on the chair?

a 2 N
b 0.5 N
c 8 N
d 0 N

The reaction force exerted by the fence on the chair is equal in magnitude and opposite in direction to the force exerted by the chair on the fence. Therefore, the reaction force exerted by the fence on the chair is 8 N.

The correct answer is c) 8 N.

According to Newton's third law of motion, the reaction force exerted by the fence on the chair is equal in magnitude but opposite in direction to the force exerted by the chair on the fence. Therefore, the reaction force exerted by the fence on the chair is also 8 N. So, the correct answer is c) 8 N.

To determine the reaction force exerted by the fence on the chair, we need to consider Newton's third law of motion, which states that every action has an equal and opposite reaction.

In this case, the action is the force exerted by the wind on the chair, which is 8 N. According to Newton's third law, the reaction force exerted by the fence on the chair will be equal in magnitude but opposite in direction to the action force.

Therefore, the reaction force exerted by the fence on the chair will also be 8 N. So, the correct answer is option c) 8 N.