#5661

66

Nov. 24, 2015, 5:39 p.m.

⚐ Report

//Math Phys '15-'16 //Eric Lu is called to do an AP problem in front of the class, so Schafer reads it Schafer: (very quickly) A frictionless pendulum of length 3 m (mumble) 10 degrees (mumble) displacement, the potential energy (mumble mumble) 10 J. Whatisthe (mumble) kinetic energy (mumble) its potential energy is 5 J? Phew! Eric Lu will now say one word. Eric: B? Schafer: Excellent! You have now received full credit on that problem.