An amusement park ride consists of airplane-shaped cars attached to steel rods. Each rod has a length of 14.2 m and a cross-sectional area of 7.80 cm^2. Each car plus two people seated in it has a total weight of 1950 N.(adsbygoogle = window.adsbygoogle || []).push({});

When operating, the ride has a maximum angular speed of 7.50 rev/min. How much is the rod stretched then?

This problem does not give an angle or a radius of the circle, so I have two unknowns and cant get an answer.

So far I have

Tcos(theta) = mg

Tsin(theta) =mv^2/r

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# Homework Help: Youngs Modulus and angular speed.

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