According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, the fence will exert a reaction force on the chair that is equal in magnitude but opposite in direction to the force exerted by the chair on the fence.
In this case, the wind blows the chair into the fence with a force of 8 N. So, the fence will exert a reaction force of 8 N on the chair in the opposite direction.
Therefore, the answer is 3. 8 N.
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?
1.0.5 N
2.2 N
3.8 N
4.0 N
1 answer