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An amusement park ride consists of a rotating circular platform 8.08 m

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asked Sep 30, 2014 in AP Physics C by anonymous

1 Answer

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An amusement park ride consists of a rotating circular platform 8.08 m in diameter from which 10 kg seats are suspended at the end of 3.02 m massless chains. W][len the system rotates, the chains make an angle of 37.2 with the vertical.

Similar to the other rotational problem, the vertical component of tension balances the weight and the horizontal component provides centripetal acceleration.  ||Tcos\theta=mg|| and ||Tsin\theta=mv^2/r||, which gives ||v^2=grtan\theta||.

Here, need to draw a nice diagram to see that ||r=lsin\theta+\frac d2||.

With ||v|| found, using ||Tcos\theta=mg|| will give the tension.
answered Oct 1, 2014 by PhysicsDude (21,750 points)
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