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

Answer 1

The observation that you appear to move backward relative to the bus when it starts moving forward can be explained by inertia, which is the tendency of an object to resist changes in its state of motion.

When the bus starts to accelerate forward, your body, which was at rest relative to the bus, tends to remain in its original state of rest due to inertia. As the bus moves forward, you feel as though you are sliding or moving backward relative to the bus, even though you are actually staying in the same position with respect to the ground. This effect can be described by Newton's First Law of Motion, which states that an object at rest will stay at rest unless acted upon by an external force. In this case, the bus is the external force acting on you by accelerating forward.