A passenger standing in a bus is thrown backward when the bus suddenly starts moving forward. This is best explained by:
Ainertia of rest
BNewton's third law
Cconservation of momentum
Dinertia of motion
Answer & Solution
Correct answer: A. inertia of rest
When the bus accelerates forward, the feet move with the floor but the upper body stays at rest due to inertia of rest, so the passenger is thrown backward.
Related questions
A constant force of 6 N acts for 4 s on a 2 kg body initially at rest. The kinetic energy A stone of mass 0.5 kg is whirled in a horizontal circle of radius 1 m at constant angularA car of mass 1000 kg accelerates from rest to 20 m s⁻¹ in 5 s on a level road. The net hoA man weighing 50 kg jumps off a stationary boat of mass 250 kg into water with a horizontNewton's third law states that 'action and reaction are equal and opposite'. The most accuTwo identical billiard balls strike a smooth rigid wall with equal speeds u. Ball A strikeA force F acts on a particle making an angle θ with its instantaneous velocity. The componA cricketer draws his hands back while catching a fast ball. The physical reason is that: