ch06-p060 - 60. (a) We note that R (the horizontal distance...

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60. (a) We note that R (the horizontal distance from the bob to the axis of rotation) is the circumference of the circular path divided by 2 π ; therefore, R = 0.94/2 = 0.15 m. The angle that the cord makes with the horizontal is now easily found: θ = cos 1 ( R/L ) = cos 1 (0.15 m / 0.90 m) = 80º. The vertical component of the force of tension in the string is T sin and must equal the downward pull of gravity (
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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