A boy standing in a bus experiences two jerks—first backward when the bus starts…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A boy standing in a bus experiences two jerks—first backward when the bus starts suddenly and then forward when it stops suddenly at the next stop. Which of the following correctly states the reason for these jerks?
(a) Backward jerk is due to inertia of motion, forward jerk is due to inertia of rest
(b) Backward jerk is due to inertia of direction, forward jerk is due to inertia of motion
(c) Backward jerk is due to inertia of rest, forward jerk is due to inertia of motion
(d) Both jerks are due to inertia of rest