A karate chop breaks a board with a blow of 3000 N. The force that acts on the hand during this event is
A)less than 3000 N.
B)3000 N.
C)more than 3000 N.
D)not enough information

Question

Quizplus · Accepted Answer

According to Newton's third law, for every action (force) there is an equal and opposite reaction (force). Therefore, the force that the hand exerts on the board (3000 N) is also the force that the board exerts on the hand. Therefore, the force that acts on the hand during this event is 3000 N.

A Karate Chop Breaks a Board with a Blow of 3000