Question

A car speeds up which claim about the forces acting on the car must be true

A there is no net force on the car
B there is no forces on the car
C there is not enough information
D there is a net force on the car

Answer 1

The claim that must be true is (D) there is a net force on the car. When a car speeds up, it experiences an acceleration which means there is a change in velocity. Therefore, to accelerate the car, there must be a net force acting on it.

Step-by-step explanation:

The claim that must be true is (D) there is a net force on the car. When a car speeds up, it experiences an acceleration which means there is a change in velocity. According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it. Therefore, to accelerate the car, there must be a net force acting on it.