You are standing in a moving bus, facing forward, and you suddenly move forward as the bus comes to an immediate stop. What force caused you to move forward?
A)force of gravity
B)normal force due to your contact with the floor of the bus
C)force due to static friction between you and the floor of the bus
D)force due to kinetic friction between you and the floor of the bus
E)no forces were responsible for your fall.

Question

Quizplus · Accepted Answer

When the bus stops suddenly, your body tends to continue moving forward due to inertia, as described by Newton's first law of motion. No external force causes you to move forward; rather, it's the lack of a force to stop your forward motion immediately.

You Are Standing in a Moving Bus, Facing Forward, and You