The around the world yo-yo trick is completed when you twirl a yo-yo in a vertical...
- The around the world yo-yo trick is completed when you twirl a yo-yo in a vertical circle. If the yo-yo was in uniform circular motion, compare the force of tension at the top of the circle to the force of tension at the bottom of the circle.
Hint: Drawing a free body diagram will be helpful.
Homework Answers
at top
Tt = m v^2 - mg
at bottom
Tb = m v^2 + mg
considering the above two equation "mg" is the factor what makes difference.
it is due to the direction of centripetal force acting by uniform velocity.
at top, centripetal force directed upwards,
at bottom, centripetal force directed downwards.
so net tension on the string is max at bottom and min at top
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comment in case any doubt, will reply for sure.. goodluck
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