A person is standing motionless between a straight highway a

A person is standing motionless between a straight highway and an airport runway. A truck drives by the person at constant speed, while airplane accelerates down the runway for take off. Of the person, truck, and airplane, which are an inertial frame of reference? person, truck, and airplane person and truck only truck and airplane only person only

Solution

Option B

Both the person and the truck are inertial frames of reference.

The person because he/she is standing still, and the truck because it is moving at a constant velocity.

The plane is not an inertial frame of reference because it is accelerating.