1. A 1.5 kg rock is being twirled in a circle on a frictionless surface using a horizontal rope. The radius of the circle is 2.00m and the rope makes 100 revolutions in 1.00 minutes. What is the tension in the rope?(adsbygoogle = window.adsbygoogle || []).push({});

This problem has totally confused me. I don't even know what equation to use that will relate tension to the other givens in the problem!

2. What is the apparent weight of a 75.0 kg person traveling at 100 km/hour:

a) over the peak of a hill with a radius of curvature = to 500m

and

b) at the bottom of a hollow of the same radius

I'm totally lost!!! HELP!!!!!!!!!!!!!

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# Homework Help: Frictionless physics problem

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