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posted by Elizabeth on Wednesday, October 3, 2012 at 11:18pm.
A 200 block on a 54 -long string swings in a circle on a horizontal, frictionless table at 90 A) What is the speed of the block? B) What is the tension in the string?
A) v=ω•R=2•π•n•L B) T = ma=mv²/L
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