Problem 11: A Circular Argument

Donald Trump throws a small rock 5 m/s at 45 degrees at a basket of kittens. Megyn Kelly asks, "When is the rock in circular motion? What are the centripetal acceleration and radius?".
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Welcome to Physierge - your concierge for learning physics!

I'm a professor at Rice University where I have taught introductory physics for the past 10 years. This page features short lectures and worked problems that will complement your calculus-based introductory physics courses.

If you are looking for a complete online course with full lectures, demonstrations, homework, exams, and an active discussion forum, consider one of my online classes at edX:

PHYS102x Electricity & Magnetism, part 1
https://www.edx.org/course/electricit...

PHYS102x Electricity & Magnetism, part 2
https://www.edx.org/course/electricit...

PHYS201x Waves & Optics
https://www.edx.org/course/waves-opti...
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For non-calculus based introductory physics, we have made AP Physics 1, also at edX:

AP Physics 1
https://www.edx.org/course/ap-physics...
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The edX classes were produced by Rice Online (http://online.rice.edu/) which offers great classes in many areas.

We also work with OpenStax College (http://openstax.org), who has several free textbooks online, including non-calculus and calculus-based physics.