Recent content by peesha

Using the chain rule, I can bring down the 1/2 and subtract 1 from the exponent, so dL/dT = 1/2*2π*(L/g)-1/2 or dL/dT = π*(L/g)-1/2 Though, now it seems that I'm not treating "g" as a constant.

2pi*sqrt(L/g) = T, which is a function of L.

Hi, I'm using partial derivatives to calculate propagation of error. However, a bit rusty on my calculus. I'm trying to figure out the partial derivative with respect to L of the equation: 2pi*sqrt(L/g) (Yep, period of a pendulum). "g" is assumed to have no error. I know I can use the...

Ah. Great. I'll clear up that distinction with my professor. Thanks again!

Thanks so much for you reply! Yep. Point mass. Huh. Because there is vertical velocity. I forgot there was still vertical velocity (I made the jump from a=0 to v=0). But if the ball is hitting the wall at an angle below the horizontal (not yet at it's apex), it would...slide up the...

Hello! Hopefully this will be a fairly straightforward conceptual problem. A heads up - while this problem clearly deals with momentum and elastic collisions, we haven't actually covered these concepts in class yet. I'm getting the idea, but am still a bit hazy here and there. Homework...