Conceptual aspects of action–reaction pairs involving normal and tension forces
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Conceptual aspects of action–reaction pairs involving normal and tension forces
(i) List the three essential characteristics of an action–reaction force pair as stated in Newton’s third law of motion.
(ii) Give one example each of an action–reaction pair involving (a) normal reaction and (b) tension in a string. Describe the two forces in every example clearly.
(iii) Using the example of a block resting on a table, distinguish between the action–reaction pair and the balanced forces that keep the block in equilibrium.