Recent content by dvs0826

Yea, for some reason I forgot the chain rule needed to be applied this time. Duh :) Thanks!

Edit: Nvm, thought I had a different method that wasn't working but turns out it does work, made another careless mistake.

Doh. It always feels like such an epic fail coming up with a really cool idea and then messing up because of something simple. Based on your suggestion I get approximately 14 degrees launch angle.

Where are you getting t = v_0 sin(θ) / g? Also I'm still curious why there's an error in the chain rule method above, even though this method also appears easier than the way I used to solve it.

25 cars means 25 times the drag force too, right?

Why doesn't this "solution" work? Homework Statement A ball is to be shot from level ground toward a wall at distance x with launch angle theta. The y-component of the velocity just as it would reach the wall, as a function of that distance x is given by the equation v_y(x) = -0.5 x + 5...

I actually agree with you, but myself and a friend both solved the problem independently, and I did it the 54ms way, and he did it the summation way. Neither of us could understand why the other was doing it the way they did, so we searched on google and found many "solutions" to the problem...

Ahh, I'm always bad at remembering formulas. I tend to just stick with a single formula whenever possible and then just massage everything into the right format to make it work. Thanks, now just looking for any suggestions on the problem itself

Homework Statement Because Earth's rotation is gradually slowing, the length of each day increases: The day at the end of 1.0 century is 1.0 ms longer than the day at the start of the century. In 54 centuries, what is the total (in hours) of the daily increases in time (that is, the sum of the...

I feel like the answer might be tensor. The difficulty with this question lies in the fact that "space" explicitly implies 3-dimensional, and hyperspace is the generalization into higher dimensions. Vector on the other hand, is inherently n-dimensional. The definition of a vector includes...