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phy121
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 **
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: ->->->->->->->->->->->-> :
CA= v^2/r
CA= 30cm/s^2/20cm
CA= 45cm/s^2 towards the center of the circle.
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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: ->->->->->->->->->->->-> :
CF= m*a
CF= 0.110kg*0.45m/s^2
CF= 0.0495N towards the center.
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*#&!
&#Very good responses. Let me know if you have questions. &#