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 fileName "Physics 1 Translational motion"
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 Physics problems strategy
 C.onfidence
 D.iagram
 S.ystem
 F.ormula
 P.lug and chug

Scalar vs vector
 Scalar: physical quantity with magnitude, no direction
 Vector: physical quantity with magnitude and direction

Rules for adding vectors, subtracting vectors
 Adding: tail of second to heads of first, then connect tail to head.
 Subtracting: put both heads together and connect tails or add negative of vector being subtracted

What are the rules for scalar, vector interaction
 1: Scalars cannot be added or subtracted from vectors
 2: Vectors can be multiplied or divided by scalars. only the magnitude,not direction changes

Rules for multiplying/dividing vectors
1: first check to see if product is scalar or vector; if a vector the direction is perpendicular to original two vectors times sine of the angle between them (Vp= V1V2sine(theta)) use right hand rule to determine which direction; if a scalar, product equals product of two vectors times cos of the angle between them

Def component vector
Component vector: two vectors placed perpendicularly to one another,whose sums equal the resultant vector.


Linear motion equations and requirments
 Xf=Xi+at+(1/2at^2)
 V=Vi+at
 V^2=Vi^2+2ax
 Vavg= (Vf+Vi)/2
 Peak height of a projectile Vi(sin(theta))=sqrt(2gh)

What information is inside of a d/t graph and a v/t graph
 D/t: displacement vs time. Slope is velocity, area under is not useful
 V/t: velocity vs time. Slope is acceleration and area under is displacement

Hat factors effect air reaistance
 Shape
 Surface area
 Velocity
 Mass  does not change force of air resistance, but the effect of air resistance on an object. The force of air resistance is constant on an object. So F=ma and F is constant, as m increases, a must decrease, so a heavier object accelerates slower than a smaller one.

