Uniform circular motion?

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Uniform circular motion?

Tarzan plans to cross a gorge by weinging in an arch hanging vine. If his arms are capable of exerting a force of 1400N on the vine, what i the maximum speed he can tolerate at the lowest point of his swing? His mass is 80kg, and the vine is 5.5m long?

2006-11-02 17:43:25 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics

2 answers

Do your own homework. Find the formula in the book.

2006-11-02 17:45:25 · answer #1 · answered by Anonymous · 0⤊ 1⤋

F = (mv^2)/r + mg = 1400 N
(v^2/r = 1400/80 - g
v = sqrt(5.5(1400/80 - 9.80662))
v = 6.5 m/sec

2006-11-03 01:54:32 · answer #2 · answered by Helmut 7 · 0⤊ 0⤋