- #1
klm
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Two wires are tied to the 400 g sphere shown in figure. The sphere revolves in a horizontal circle at a constant speed of 8.30 m/s
1) What is the tension in the upper wire?
2) What is the tension in the lower wire?
okay i know that m=.4 and v=8.3
i don't know r, which i thought that maybe i could find by doing the square root (1^2-.5^2) =.866
and then Force= m V^2 / R sooo.. (.4)(8.3^2)/(.866) = 31.819 . but i don't know where to go from there?
1) What is the tension in the upper wire?
2) What is the tension in the lower wire?
okay i know that m=.4 and v=8.3
i don't know r, which i thought that maybe i could find by doing the square root (1^2-.5^2) =.866
and then Force= m V^2 / R sooo.. (.4)(8.3^2)/(.866) = 31.819 . but i don't know where to go from there?