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BoredButCurious
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If a car is traveling at a constant speed of say, 60MPH, is the acceleration of the car 0, or is it equal to the drag and rolling resistance it's facing?
What do you think and why? What is the definition of acceleration?BoredButCurious said:If a car is traveling at a constant speed of say, 60MPH, is the acceleration of the car 0, or is it equal to the drag and rolling resistance it's facing?
BoredButCurious said:If a car is traveling at a constant speed of say, 60MPH, is the acceleration of the car 0, or is it equal to the drag and rolling resistance it's facing?
[USER=569844]@navin[/USER] said:If not considering resistive forces, the acceleration is zero.
But if we do consider them, then they are always opposing the motion of the car. To keep the velocity of the car constant, the engine has to be kept running, else resistive forces slow u down to rest.
So, a force is applied by the engine just to overcome the resistive forces to keep the car moving with constant velocity.
I hope you understood :-)
BoredButCurious said:If a car is traveling at a constant speed of say, 60MPH, is the acceleration of the car 0, or is it equal to the drag and rolling resistance it's facing?
Acceleration is the rate of change of velocity over time. It is a vector quantity, meaning it has both magnitude and direction.
No, a car cannot have acceleration at a constant speed. Acceleration occurs when there is a change in velocity, either in magnitude or direction. If the car is maintaining a constant speed, there is no change in velocity and therefore no acceleration.
Speed is the rate at which an object covers distance, while acceleration is the rate at which an object's velocity changes. In simpler terms, speed is how fast or slow an object is moving, while acceleration is how much that speed is changing.
Acceleration is calculated by dividing the change in velocity by the change in time. The formula for acceleration is a = (vf - vi) / t, where a is acceleration, vf is final velocity, vi is initial velocity, and t is time.
No, a car cannot have a negative acceleration at constant speed. Negative acceleration, also known as deceleration, occurs when an object's velocity decreases over time. If a car is maintaining a constant speed, there is no change in velocity and therefore no negative acceleration.