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phy 201
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.
** CQ_1_25.1_labelMessages.txt **
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: ->->->->->->->->->->->-> :
magnitude is v^2/r so 30^2/20 = 45
toward the center
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What is the magnitude and direction of the centripetal force required to keep it moving around this circle?
answer/question/discussion: ->->->->->->->->->->->-> :
fnet = m * a
fnet = .11 * 45
fet = 4.95 N
in a circular pattern is the direction
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3 minutes
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The units of this result do not come out in Newtons.
Please submit a revision with units on every quantity in every step of your solution.
This shouldn't take you long at all, and should help clarify the importance of using correct units.
&#Please see my notes and submit a copy of this document with revisions, comments and/or questions, and mark your insertions with &&&& (please mark each insertion at the beginning and at the end).
Be sure to include the entire document, including my notes. &#
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