Phy 121
Your 'cq_1_25.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A steel ball of mass 110 grams moves with a speed of 30 cm / second around a circle of radius 20 cm.
• What are the magnitude and direction of the centripetal acceleration of the ball?
answer/question/discussion: ->->->->->->->->->->->-> : v^2/r=cent. Acceleration, .3m/s^2/.2m=.45m/s^2, Fcent=.45m/s^2*.11kg…can only assume the “direction” of the acceleration is circular.
• What is the magnitude and direction of the centripetal force required to keep it moving around this circle?
answer/question/discussion: ->->->->->->->->->->->-> : Magnitude=.45m/s^2*.11kg or .05N. I don’t think I know, based on my thinking of the seed above, how to solve for direction…intuitively I don’t see why it is anything more than a circular path. I have a feeling you’ll have a little more accurate and complex explanation for me.
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20min
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Your feeling is correct. No revision necessary but check the link for the direction of that force:
&#Please compare your solutions with the expanded discussion at the link
Solution
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