Question

a car company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies bodies continue to move forward even though the car stopped? a. the forward acceleration of the car keeps them in motion. b. the gravity pulling on the car keeps them in motion. c. the inertia of their bodies keeps them in motion. d. the friction opposing their bodies movement keeps them in motion.

Explanation:

Inertia is the tendency of an object to resist changes in its state of motion. When the car stops suddenly, the crash - test dummies' bodies, due to inertia, want to continue moving forward as they were before the stop.

Answer:

C. The inertia of their bodies keeps them in motion.