What do the red arrows represent in a circular motion diagram?
Circular Motion Review - 4A

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•
Physics
•
11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The velocity vector.
2.
FLASHCARD QUESTION
Front
Where does centripetal acceleration always point?
Back
Towards the center of the circle.
3.
FLASHCARD QUESTION
Front
The velocity in circular motion is always _____ to the line of a circle.
Back
Tangent.
4.
FLASHCARD QUESTION
Front
Why does an object in uniform circular motion have acceleration?
Back
Because it is changing direction.
5.
FLASHCARD QUESTION
Front
What is the direction of centripetal force in circular motion?
Back
Towards the center of the circle.
6.
FLASHCARD QUESTION
Front
Define centripetal acceleration.
Back
Acceleration that acts on an object moving in a circular path, directed towards the center of the circle.
7.
FLASHCARD QUESTION
Front
What is the formula for centripetal acceleration?
Back
a_c = v^2 / r, where v is the linear velocity and r is the radius.
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