Review Flashcards
(13 cards)
How do vectors add togetehr?
from tail to tip they connect
What to rememver about incline planes
the angle of the resultant gravity force is always closest to the box
What does work also
change in KE
How can I relate momentum to a final velocity if not given one ?
first find KE=UG and find the velocity
then plug in the final velocity to momentum equation to find the initial velocity
what is the horizontal component of a diagnol vector
F cos theta
what is the vertical component of a diagnol vertor
f sin theta
if theres a change in height which equation should you use
Bernoulli’s equation
if you pole a hole, no change in height what equation do you use
V= square root of 2gh
what is acceleration as you drop down
-9.8
what does time equal
distance/time
what does distnace equal
velocity times time
what is center of mass equation
xcm= (mx)+(m2x) divided by m+m2
things to remember about sin or cos for inlcine planes
Normal = Cos
Slide = Sin
