PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A wooden block rests on a horizontal table. Which of the following pairs of forces forms an action–reaction pair according to Newton’s third law?
(a) Weight of the block acting downward and normal reaction of the table on the block acting upward
(b) Normal reaction of the table on the block acting upward and force exerted by the block on the table acting downward
(c) Weight of the block acting downward and frictional force between the block and the table
(d) Weight of the block acting downward and force exerted by the block on the table acting downward