Physics Flashcards

relative velocity

velocity apparent at a particular point of reference

Vr = Va - Vb

equation of final **velocity** when velocity is ==not constant==

Vf^2 = Vo^2 + 2a∆X

equation for final **position** when velocity is ==not constant==

∆X = VoT + 1/2a(T^2)

equation for final **velocity**

Vf = Vo + aT

equation for __average__ **velocity**

V = (Vo + Vf)/2

instantaneous acceleleration

acceleration over the course of set intervals of time

example of negative acceleration

a car backing up

example of deceleration

a car slowing down

deceleration

when acceleration is opposite the direction of motion

a change in velocity or acceleration is:

speed (magnitude) or direction

average acceleration

the rate at which velocity changes

m/s^2

momentum relating to Newton’s 2nd Law

an impulse (F∆t) equals a change in momentum

momentum relating to Newton’s 3rd Law

the Law of Conservation of Momentum states the sum of the moments before a collision equals the som of the momentum after a collision

momentum

the product of an object’s mass and it’s velocity

if velocity is positive, momentum is:

positive

if velocity is negative, momentum is:

negative