A car driver accelerates to a speed of 35 mph and then takes her foot off the pedal. Even though she does not press the brake pedal at any time, she eventually rolls to a stop. What causes that?
Friction
it is a
yeah its A
The car eventually rolls to a stop due to a few factors. One of the main factors is the presence of friction, specifically air resistance and tire friction. As the car moves forward, it encounters air resistance, which acts against its motion and slows it down. Additionally, the tires of the car continually experience rolling resistance, which also contributes to the deceleration.
When the driver takes her foot off the pedal, the car's engine stops delivering power to the wheels. As a result, the car is no longer accelerating and begins to gradually decelerate due to the resistance forces mentioned earlier. Over time, these forces cause the car to lose its speed and eventually come to a stop.
It's important to note that the rate at which the car decelerates depends on various factors such as the vehicle's weight, aerodynamics, road conditions, and the initial speed at which the driver released the accelerator pedal. These factors influence the strength of the resistive forces acting against the car's motion, affecting the time it takes for the car to come to a complete stop.