Your friend says that the heavyweight champion of the world cannot exert a force of 50 N on an isolated piece of tissue paper with his best punch. You
A) agree that it can't be done.
B) have reservations about this assertion.
C) disagree, for a good punch easily delivers this much force.
Question 2
The winner in a tug-of-war exerts the greatest force on
A) the opponent.
B) his or her end of the rope.
C) the ground.