Motion - zero velocity but still having acceleration

In summary, a body can have zero velocity but still have acceleration in various scenarios, such as when it is at the highest point of a vertical projection, reversing direction of movement, or during a pendulum or bungee jumping motion.
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Kartik.
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Motion -- zero velocity but still having acceleration

What would be a example of a body having zero velocity but still having acceleration, except the example of a body projected vertically upwards and at the highest point it has no velocity but an acceleration equals 'g'?
 
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Reversing the direction something is moving in?
 
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Kartik. said:
What would be a example of a body having zero velocity but still having acceleration,
There is always a frame of reference where a body has zero velocity.
 
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Kartik. said:
What would be a example of a body having zero velocity but still having acceleration, except the example of a body projected vertically upwards and at the highest point it has no velocity but an acceleration equals 'g'?

An obvious one comes to mind: consider a pendulum at each end of its motion.
 
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Or throw a ball upward. At its highest point the ball's velocity is 0 but its acceleration is still -9.8 m/s^2.
 
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...or someone bungee jumping when they reach the lowest point.
 

FAQ: Motion - zero velocity but still having acceleration

What is zero velocity?

Zero velocity, also known as rest, is when an object is not moving at all. This means that its speed is zero and it is not changing its position.

What is acceleration?

Acceleration is the rate of change of an object's velocity. It can be positive, negative, or zero. When an object has a non-zero acceleration, it is changing its velocity.

How can an object have zero velocity but still have acceleration?

An object can have zero velocity but still have acceleration if its direction of movement is changing. This means that even though its speed is not changing, it is still accelerating as it is changing its direction.

What is the difference between zero acceleration and no acceleration?

Zero acceleration means that an object's velocity is not changing, while no acceleration means that there is no force acting on the object. It is possible for an object to have no acceleration but still have a non-zero velocity.

Can an object have zero velocity and no acceleration at the same time?

Yes, an object can have zero velocity and no acceleration at the same time if it is at rest and no forces are acting on it. This means that it is not moving and its speed and direction are not changing.

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