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Answered 2011-11-04 03:45:02

The velocity is changing and is not constant. Velocity is speed as well as direction so there is a continuous change in velocity which means there is acceleration.

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If a car is traveling in a straight line at a constant speed is it accelerating?

No. 'Acceleration' means a change in speed or direction over time. If the car is moving at a constant speed in a constant direction, then it isn't accelerating.


What is the acceleration of a car going a constant speed of 100?

A car going at a constant speed is not accelerating (its rate of acceleration is zero).



An object cannot be accelerating if it has a constant speedtrue or false?

An object with a constant (vector)velocity is not accelerating. An object with a constand (scalar)speed can actually be accelerating, a car with a constant speed that passes around a corner is changing direction and is subjected to a lateral acceleration.


Is a car going at a constant speed around a curve accelerating?

Yes, it is accelerating into a different velocity (i.e. direction)



Why is a car traveling at a constant speed in a circle always accelerating?

Because its velocity is changing all the time. The speed is constant, the velocity is not.



A car is driving at constant velocity Is the car accelerating?

No. The car is not accelerating if at constant velocity. Acceleration is the change in velocity with time.


Can an object be accelerating if it has a constant speed?

Yes. Acceleration means either speed or direction is changing. If direction is changing,then that's acceleration, even if speed is constant.



If a car is traveling at a constant speed but is going around a curve what can you say about the cars motion?

The velocity of the car in this case is changing (to specify velocity, you indicate a speed and a direction), therefore the car is accelerating.The velocity of the car in this case is changing (to specify velocity, you indicate a speed and a direction), therefore the car is accelerating.The velocity of the car in this case is changing (to specify velocity, you indicate a speed and a direction), therefore the car is accelerating.The velocity of the car in this case is changing (to specify velocity, you indicate a speed and a direction), therefore the car is accelerating.


How can you tell if an unbalanced force is acting on a car?

Forces are unbalanced if the car is accelerating or decelerating. If the car is at a constant speed (i.e. stationary, or constantly at the same speed) then the forces are balanced.


Would you consider a car turning around a corner at a constant speed to be accelerating?

It depends on which direction you are resolving the acceleration from. If you use the original direction of the car as it turns it is decelerating as the speed it is moving in that direction is decreasing. If you resolve from the direction which the car will be going towards then it is accelerating as its speed in that direction is increasing.


Why don't we feel the rotation of the earth?

Because the Earth is travelling at a constant speed. i.e. it is not accelerating. Another example of this can be found in the car. When the car is accelerating, we can feel ourselves being pushed into our seats, but when we are travelling on a motorway at the same speed, we do not get this feeling.


What acceleration of a car accelerate even thought your speed don't change?

If the car is moving at a constant speed but is changing direction, it is accelerating. Acceleration is change in velocity, and velocity includes magnitude (speed) and direction.


How can you accelerate when your speed does not?

By changing direction. Acceleration is a change in velocity. Since velocity takes direction into account, while speed does not, an object can having a changing velocity even while its speed remains the same. And while that object is changing its velocity by changing its direction, it is accelerating, regardless of its speed remaining constant. For example, if a car is driving north at constant speed of 20mph, its speed is 20mph, while its velocity is 20mph towards the north. At this point, the car is not accelerating. Now if the car turns a corner to head east while maintaining its speed of 20mph, its velocity is changing from 20mph northward to 20mph north-eastward and finally to 20mph eastward. As it is turning, it is accelerating. However, as soon as it stops turning, the car is no longer accelerating.


Is a car balanced or unbalanced when turninng while moving at a constant speed?

The forces acting on the car are unbalanced because it is accelerating by changing direction, even though it has constant speed. Unbalanced forces cause acceleration (change in motion). That is what Newton's first law of motion is about.


What is the acceleration of a car that travels in a straight line at a constant speed of 80 km per hour?

if the velocity is constant, the acceleration is zero. The acceleration is the rate at which the velocity changes, so if it stays the same, the car isn't accelerating.


Could an object be accelerating even if its speed is constant?

Yes. "Acceleration" does NOT mean 'speeding up'.Acceleration is ANY change in speed or direction of motion So, for example,a point on the tire of a car cruising down the street is constantly accelerating,because the direction of its motion is constantly changing. Another exampleis a TV satellite in a circular orbit. It's constantly accelerating, for the samereason.Any object that's NOT moving at a constant speed and in a straight line isaccelerating.


A car is moving at a constant speed is it accelerating?

This is one of those theoretical situations, like the frictionless surface you will see in physics problems. The short answer is that no, a car travelling at a constant speed is not accelerating. Acceleration is a change in velocity over time. Velocity is speed, so if you have zero change in velocity over a period of time, you have acceleration of zero. In the real world, you will have other factors acting on the vehicle, which would affect the acceleration.


You are sitting in a car driving at a constant speed on a flat road What are all of the forces acting on you not the forces acting on the car?

Moving at a constant speed if your in the car then there are no forces acting on you from the car. If the car accelerates then the car will push you forward and you will feel the Force of the seat pushing you. The only other force on you in a car is gravity witch always pulls straight down. Gravity is always there whether the car is accelerating or not.


Give example of an object be accelerated if it is moving with constant speed?

Any object moving in a circle (as in a centrifuge, or a planet in an orbit) is accelerating. More generally, any object that moves in a curve is accelerating (such as a car moving in a curve on the road).


How is it possible for a car to be accelerating if its speed is a steady 65 mph?

The term accelerating means increasing in speed, so if a car holds its speed steady at 65 mph, it is not accelerating. It is still running its engine, to overcome air resistance and other forms of friction, but that is not the same thing as acceleration.


What is the net force on a car moving in a straight line with a constant speed?

If the car is moving in a constant direction at a constant speed, then the net force on it is zero.


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