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Posted by on Thursday, February 21, 2008 at 7:36pm.

If you observe a change in an object's speed or direction, you are observing a change in its ______________.

s) frame of reference
b) velocity
c) position
d) momentum
I am thinking it is b) VELOCITY, but I am not sure.

  • Science - , Thursday, February 21, 2008 at 9:27pm

    by definition, change in velocity=change in speed or direction, Answer B

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