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Details Title: kinematics Description: velocity Total Flash Cards: 10 Created: 12/19/2006 13:09:55	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term adding a vector Definition break into components x and y add all x and ys then magnitude is = the square root of (xtotal^2 + ytotal^2) Term finding theta of a vector Definition tan theta = y/x Term subtracting a vector Definition must multiply the x and y component of vector subtracted by -1 then same as adding Term average velocity Definition ratio of displacement/ ∆time average velocity=∆x/∆t Term instantaneous veocity Definition at a single instant v=lim ∆x/∆t as ∆t approaches 0 Term average speed Definition average speed=distance/time s=d/∆t (scalar) Term instantaneous speed Definition the magnitude of the instantaneous velocity vector (scalar) Term average acceleration Definition is the change in instantaneous velocity over time ā=∆v/∆t Term instantaneous acceleration Definition the acceleration at a specific point a=lim ∆v/∆t as t approaches 0 Term kinematic equations Definition v=v0+at x=v0t+(at^2)/2 v^2=v0^2+2ax average velocity=(v0+v)/2 x=(average velocity)t=((v0+v)/2)t