PHYSICS: Super short class today!! Are you ready for the test? Below – first the ultrashort overview of the test and a look at some conceptual stuff. Below that the help session from this morning – the kid on a slide with a water gun problem and also an initial look at the rocket problem.
Don’t forget what you should do to start – Draw a picture, write what you know, resolve the resultant velocity into vertical and horizontal if you need to, and find formulas that fit (because it will hardly ever be solved with just one) and go for it!!
If you are talking angular projectiles, the resultant velocity is actually made up of two things – horizontal velocity and vertical velocity. The horizontal velocity never changes, the vertical velocity has a different direction going up and coming down, but it has the same speed at equal levels. If you’re talking horizontal projectiles, the resultant velocity is the same as the horizontal velocity of the gun – or whatever, because that’s the only kind of initial velocity it has!
Relative motion is even easier – just use the Pythagorean theorem and tangent, and use horizontal to find horizontal and vertical to find vertical. Good bless you as you study! I’ll be praying for you!!
PHYSICS 10-7-14 Projectile Motion Concept Review from Tammy Skinner on Vimeo.
flickr photo by Johnson Cameraface
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PHYSICS 10-7-14 2D Motion Problems Help Session from Tammy Skinner on Vimeo.
Can we make sure we work problem 62 at the help session tomorrow morning?
so we are having a help session tomorrow morning?
M – Yes! 7:15ish tomorrow morning- Wednesday. Sorry! I forgot to include that. We’ve missed you in class!! π
good deal! thank you! I’ve missed y’all too. π
Will the tests go on this mine weeks or last nine weeks?
I enjoyed doing the virtual lab it was fun.