Motion - zero velocity but still having acceleration

AI Thread Summary
A body can have zero velocity while still experiencing acceleration, as demonstrated by examples such as a pendulum at its endpoints or a ball thrown upwards at its highest point. In these cases, the objects momentarily stop before changing direction, yet they are subject to gravitational acceleration. Another example includes a bungee jumper reaching the lowest point of their jump, where velocity is zero but acceleration is directed upwards due to the elastic force of the bungee cord. The concept highlights the distinction between velocity and acceleration in motion. Understanding this principle is crucial in physics and kinematics.
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?
 


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.
 


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.
 


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.
 


...or someone bungee jumping when they reach the lowest point.
 
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