A frat boy throws a ping pong ball from 0.6 m above a table at 5 m/s and wants to land it in a 20 cm cup 1 m away. At what angle should he throw?
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
PHYS102x Electricity & Magnetism, part 2
PHYS201x Waves & Optics
For non-calculus based introductory physics, we have made AP Physics 1, also at edX:
AP Physics 1
The edX classes were produced by Rice Online ( which offers great classes in many areas.
We also work with OpenStax College ( who has several free textbooks online, including non-calculus and calculus-based physics.