phy201
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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seed 25.1
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 = v^2/r
= (30cm/s)^2/ 20cm
= 900cm^2/s^2 /20
=45cm/s^2
I know force is .11kg * .45m/s^2 = .0495N
#$&*
What is the magnitude and direction of the centripetal force required to keep it moving around this circle?
answer/question/discussion: ->->->->->->->->->->->-> :
I am not sure
#$&*
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about 20 minutes
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I know for this problem what the acceleration and the force are, but I am not sure how to get the direction, it seems the direction would be going in a circle 360 degrees??????
The direction is toward the center of the circle. The direction to the center of course depends on where the object is on the circle.
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Solution
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