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    jenny04's Avatar
    jenny04 Posts: 1, Reputation: 1
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    #1

    Oct 24, 2008, 06:41 AM
    Position velocity acceleration vector and motion
    Hi.my questions are.
    1-Are the instantaneous velocity vector and the acceleration vector always in the direction of the motion? Why?

    2-is it possible for the velocity vector of a particle to be perpendicular to its position vector? Why?

    3-is it possible for a particle to go around a curve at constant speed without expressing an acceleration.Why?
    Thanks
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Oct 24, 2008, 01:55 PM

    We won't just do your homework for you. You should take a shot at answering these questions yourself - especially the "why" part - and then we'll help you along if you get stuck.

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