### The Physics Philes, lesson 41: Avenging Angular Acceleration

In which equations are derived, Blu-rays spin, and Hulk movies are lamented. The last couple of weeks we’ve been discussing angular velocity and acceleration. You may have gotten a case of déjà vu; calculating angular velocity and acceleration is very similar to calculating straight line motion. Well get ready for …

### The Physics Philes, lesson 40: What’s Your Angle?

In which radians are converted, angular velocity and acceleration are calculated, and I figure out what a flywheel is. Alrighty, folks. Last week we laid the foundation for understanding angular velocity and acceleration. Now it’s time to apply that knowledge with some practice problems. Whoop whoop! I guess we should …

### The Physics Philes, lesson 38: Outside Forces

In which momentum is not conserved, external forces are exerted, and parabolic trajectories are maintained. Are you ready to finally finish up the basics of momentum and center of mass? Well hold on to your hats, because it’s time to roll. Last week we discussed momentum and center of mass …

### The Physics Philes, lesson 36: Knock’em About

In which kinetic energy is conserved, algebra is done, and notes are remembered. Woo hoo! I remembered to bring my notes and textbook home from work, which means that we can continue our discussion of momentum! Huzzah! If you’ll remember, an elastic collision in an isolated system is a collision …

### The Physics Philes, lesson 33: I’ve Got the Momentum!

In which a gun recoils, a crappy diagram is drawn, and kinetic energy is differentiated. Last week I explained the basics of conservation of momentum. Today we’ll do a problem to demonstrate this basic principle. I know you’re excited, so let’s get to it. We know that if a system …

### The Physics Philes, lesson 32: Save the Momenta!

In which laws of motion are revisited, momentum is conserved, and forces are classified. Last week was a big week for me on my journey to understanding physics. I started trigonometry, my first for-real math class in 10 years. Ten years. So I was a little busy doing further review …

### The Physics Philes, lesson 30: Return of Physics!

In which tennis balls are hit, momentum is gained, and physics is resurrected. Lately I’ve been doing a lot of math in this small corner of the Internet. Well, trying to, anyway. But then I realized, hey! This is The Physics Philes, not the Math…Thingy. So this week we see …

### The Physics Philes, lesson 29: Math, Discontinuously

In which discontinuity is removed, x-intercepts are determined, and physics is promised. Happy New Year’s Eve, and I hope you all had a wonderful Newton-mas! Thanks for tolerating my half-assed post from last week. But I’m back and better than (actually, probably the same as) ever! Today I’m going to …