Q&A

Can acceleration be zero if speed is constant?

Can acceleration be zero if speed is constant?

If an objects speed remains constant, then its acceleration must be zero.

Can a body have zero acceleration with constant speed give an example?

Example. When the body is projected vertically up, at the highest point its speed becomes zero whereas it is accelerating downwards with g = 9.8 m/s2.

Does constant speed mean constant acceleration?

Constant speed does not mean acceleration. Acceleration is the variation of speed over time, or dV/dt. At constant speed, acceleration is zero, no doubt.

Can a body have constant speed?

Yes, a body has constant speed as well as variable velocity. Consider an example: A particle moving in a circular path with a uniform circular motion.

Can a body have acceleration at constant speed?

Yes. Even though the initial and final speeds are the same, there has been a change in direction for the object. Thus, there is an acceleration. This explains why an object moving in a circle at constant speed can be said to accelerate – the direction of the velocity changes.

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Can a body have zero velocity and non-zero acceleration?

Acceleration is the rate of change of velocity of an object with respect to the time over which this change occurs. It is possible to have a non-zero value of acceleration when the velocity of a body is zero. At this point, the velocity of the ball is zero yet its acceleration is equal to g=9.8m/s2.

Can a body have constant speed but varying velocity explain?

Yes if the body is travelling with uniform speed in a circular track its speed remains the same but the velocity is non-uniform as the direction of the body is changing every time. As we know, velocity is a vector quantity, so as the direction of motion changes, velocity also changes.

Can a body having constant speed have varying velocity?

Can a body have constant speed but varying velocity explain with example?

Yes if the body is travelling with uniform speed in a circular track its speed remains the same but the velocity is non-uniform as the direction of the body is changing every time. For example, consider a vehicle moving with a constant speed on a circular path.

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Can a body have constant speed but a varying velocity?

Can a body with constant speed have acceleration?

If a body has constant velocity, it means that the magnitude of the velocity and the direction of the velocity vector will remain constant. Since speed is equal to the magnitude of the velocity vector, it will also be constant. Hence, a body can have a constant speed and still be accelerating.

Can a particle accelerate when its speed is constant?

Answer: yes a particle accelerate if its speed is constant. Explanation: When an object moves around a circular path with a constant speed that means the object is accelerated.

Can a body have acceleration when it is having constant speed?

Can a body have acceleration when it is having constant speed and can have zero speed and still accelerating? Yes . #1 When a body is in uniform circular motion , the body have a constant speed but since the direction of the velocity changes everytime ,the body is under acceleration.

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Does acceleration change when velocity is zero?

Short answer: yes. Zero acceleration means no change in velocity. Because velocity includes speed and direction, constant velocity means constant speed and constant direction (i.e., straight-line motion). Note: If an object follows a curve at constant speed, its velocity is changing, so it has a non-zero acceleration.

Can an object have a constant velocity while experiencing rotational acceleration?

Yes. If you assume the body to be stationary, but experiencing a rotational acceleration due to some couple force/forces, then this scenario is applicable. Can an object have a constant velocity and still have a varying speed?

What happens when the velocity of a body reaches zero?

The velocity of the body gradually decreases and at a point it becomes zero and then starts to increase in the direction to that of the force. The point at which the speed becomes zero the body is in accelerating condition. 25 insanely cool gadgets selling out quickly in 2021.