Posted by **Sam Line** on Thursday, October 29, 2009 at 12:32pm.

While fishing, you get bored and start to swing a sinker weight around in a circle below you on a 0.25-m piece of fishing line. The weight makes a complete circle every 0.50 sec. What is the angle that the fishing line makes with the vertical?

- Physics -
**MathMate**, Thursday, October 29, 2009 at 6:08pm
Centripetal acceleration, Ac (horizontal)

= (1/2)v²/r m/s²

Acceleration due to gravity, g (vertical)

= 9.8 m/s²

Angle with vertical, θ

= tan^{-1}(Ac/g)

- Physics -
**hopsy**, Monday, January 17, 2011 at 9:21pm
76.1°

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