Physics 1 Translational motion.txt

• author "me"
• tags ""
• description ""
• fileName "Physics 1 Translational motion"
• freezingBlueDBID -1.0
• Physics problems strategy
• C.onfidence
• D.iagram
• S.ystem
• F.ormula
• P.lug and chug

• Scalar: physical quantity with magnitude, no direction
• Vector: physical quantity with magnitude and direction

• 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

• 1: Scalars cannot be added or subtracted from vectors
• 2: Vectors can be multiplied or divided by scalars. only the magnitude,not direction changes

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

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

• 1: 3-4-5
• 2: 5-12-13

• 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)

• 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

• 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.