Sorry about that. They should probably be from the origin. I've seen it done that way a lot online. ## a_r = -|\vec g|\ ## is what I meant. I was confusing ##\ddot r ## with##\ a_r ##. This makes much more sense:
$$\ddot r− r\dot \theta^2 = -|\vec g|\quad {\mathsf {and} }\quad r\ddot\theta +...
Center of the earth. What I want are equations that describe the projectile's motion giving me theta, r, omega, and radial velocity using my starting values for v, theta, angle of projectile launch.
Which "constants"? The idea with using the center of the Earth as the origin is that there...
Thanks!
It seems to me there should be a way to do things in polar. I've found lots of google help with cartesian mechanics though and very little in polar coordinates.
The projectile is moving very fast ie multiple km/s, so the gravitational acceleration vector can change direction from...
Homework Statement
A projectile is launched from a mountain at a given angle and velocity (which is large). Using polar coordinates find the position of the particle at time t. I'm ignoring drag (for now).
Homework Equations
I tried using the polar kinematic equations...
Hey Guys,
I know there are some other posts on this, but I have a slightly different situation than most of the ones I've looked at.
I'm a recently graduated Physics major. Starting junior-senior year I became interested in going into engineering. I would like to work in the space...