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Circular motion — the acceleration is not constant?

  • #1

Homework Statement


An object moves at constant speed in a circular path. True statements about the motion include which of the following?

a) the velocity is constant
b) the acceleration is constant
c) the net force on the obj is 0 since its speed is constant

Homework Equations


hm none, really?

The Attempt at a Solution


the v is certainly not constant bc even if it's a UCM, direction is always changing.
There must be a centripetal force, so the net force cannot be 0.
I had rather confidently chosen that b) is the only true statement, but apparently none of them is supposed to be correct. Why is this so?
 

Answers and Replies

  • #2
Orodruin
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Why do you think that (b) is correct?
 

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