# :eek: Kinematics help :eek:

wat moves at constant speed in straight line?

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These are some questions I need to answer..
>What moves at constant speed in straight line?
>What moves at constant speed in circle?

anyone here to help??

A lot of things can travel at a constant velocity in a straight line.

And I think that when something follows the path of a circle it is said to be constantly changing its speed (accelerating). Although I probably understood this wrong when I heard it.

Mozart said:
And I think that when something follows the path of a circle it is said to be constantly changing its speed (accelerating). Although I probably understood this wrong when I heard it.
confusing speed with velocity....... :surprised :surprised

mrjeffy321
Are you looking for examples or what?

Something moving at a constant speed in a straight line has a constant velocity (no acceleration, no net force).

Something moving at a constant speed in a circle, has a constantly changing velocity (centripital acceleration toward the center of the circle).

lightgrav
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