Physics - NLM Question with Solution | TestHub

An inertial frame of reference is a frame that is non-accelerating. It is either at rest or moving with a constant velocity.

An aeroplane taking off has a net forward acceleration, making it a non-inertial frame.

A child revolving in a merry-go-round undergoes circular motion and experiences centripetal acceleration, making it a non-inertial frame.

A train slowing down is decelerating, meaning it has a non-zero acceleration, making it a non-inertial frame.

A bus moving with constant velocity has zero acceleration. Therefore, the driver in the bus is in an inertial frame of reference.