Q: A car traveling in a straight line has a velocity of 5.0 ms After an acceleration of 0.75 ms squared the cars velocity is 8.0 ms In what time interval did the acceleration occur?

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If your acceleration is zero, then yes, you are traveling at a constant speed. The path does not matter. Acceleration measures the change in velocity, so an acceleration of zero means that there is zero change in velocity and therefore the speed is constant.

No. Acceleration is (change of velocity) divided by (time interval in which it changed). If velocity doesn't change, then there is no acceleration.

No. Acceleration is change of velocity / time. If there is no change in velocity, there is no acceleration.

Average acceleration = (change in speed) divided by (time interval)A = (9.0 - 9.5) / (3.5) = (-0.5) / (3.5) = 0.14286 meter/sec2

No. An object traveling at a constant velocity is not accelerating.

Velocity is a constant traveling speed. Acceleration is increasing traveling speed (variation of speed over time)

Acceleration is independent of speed. If the instantaneous velocity of an object is 12m/s and no other information is known, it is impossible to tell the acceleration. However, if the velocity does not change at all over a certain time interval, the acceleration over that time interval is 0m/s2. If other information is given, such as initial/final velocity, time, or displacement, then one of the the "famous five" equations may be used to determine the acceleration.

It is acceleration. The difference between final velocity and initial velocity, divided by the time is the AVERAGE acceleration. Remember, though that velocity is a vector. So if you are going round in a circle at a constant speed, your direction of motion is changing continuously and so you are always accelerating!

Yes, if the acceleration is not colinear with the existing velocity.

zero - it is constat velocity. so acceleration is zero50 m/s2 Another : The acceleration is ZERO. Acceleration is defined as the change in velocity per unit time. If the ball is traveling a constant velocity over a two minute period, the acceleration would be zero since there is no change in velocity.

When something is traveling at a constant velocity it has no acceleration. In other words your answer is 0.

If a velocity or speed is constant there isn't an acceleration. This is because the acceleration is the change in speed or velocity and if it's constant then there sn't a change.