Which statement correctly applies to a car that changes its velocity over a period of time?(1 point)%0D%0AResponses%0D%0A%0D%0AForces are acting on it.%0D%0AForces are acting on it.%0D%0A%0D%0AThe combination of all forces acting on it is zero.%0D%0AThe combination of all forces acting on it is zero.%0D%0A%0D%0AA nonzero net force is acting on it.%0D%0AA nonzero net force is acting on it.%0D%0A%0D%0ANo net force is acting on it.
A nonzero net force is acting on it.
The correct statement that applies to a car that changes its velocity over a period of time is: "A nonzero net force is acting on it."
The correct statement that applies to a car that changes its velocity over a period of time is: "A nonzero net force is acting on it."
Explanation:
When a car changes its velocity over a period of time, it means that its speed or direction of motion is changing. According to Newton's first law of motion, an object will maintain its state of motion (either at rest or moving with a constant velocity) unless acted upon by an external force. Therefore, if the car's velocity is changing, there must be a force acting on it.
In this case, the statement "A nonzero net force is acting on it" means that the combination of all forces acting on the car is not zero. It indicates that there is a resultant force that is causing the change in velocity.
To determine whether a nonzero net force is acting on the car, you can analyze the situation by considering all the forces involved. This includes forces such as friction, air resistance, and the forces applied by the engine, brakes, or any other external factors. By calculating the sum of these forces using Newton's second law of motion (F = m * a, where F is the net force, m is the mass of the car, and a is its acceleration), you can determine whether there is a nonzero net force causing the change in velocity.