You are sitting in a stopped bus. When the bus starts moving forward, you appear to move backward relative to the bus. Which statement best explains this observation?
a
The force of inertia on you balances the force from the motion of the bus.
b
Inertia prevents the force of the bus from acting on you.
c
The bus moves forward, while inertia keeps you in place.
d
The motion of the bus creates an unbalanced backward force on you.
c
The bus moves forward, while inertia keeps you in place.