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Unformatted text preview: ydirection a x = g a y= o o xo cos v v θ = o o yo sin v v θ = xo x v v = (constant!) gt sin v v o o yθ = t ) cos v ( x x o o o θ + = 2 o o o gt t ) sin v ( y y 2 1θ + = Trajectory: 2 o 2 2 o o x cos v 2 g x ) (tan y θθ = Max. Height: g 2 sin v h 2 2 o θ = Range: g 2 sin v R o 2 o θ = f o E E = Conservation of Energy f f o o ) KE ( ) PE ( W ) KE ( ) PE ( + = + + d F W = [Work = (Force) (distance)] (unit is J, Joule) Force and distance are vectors and their dot product gives the scalar Work. So, use only the component of the Force that is in the direction of the movement. d ) cos F ( W θ = KE(linear) = 2 v m 2 1 o f ) KE ( ) KE ( KE W= ∆ = t W P = [Power = (work)/(time)] (unit is W, Watt) v ) cos F ( v F P θ = = Spring (with spring constant k): kx F= 2 x k 2 1 PE = PE or U (Potential Energy) of gravity: h g m U = 2...
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 Spring '08
 Staff
 Physics, Acceleration, Force, Cos, Qiu PHY, Formula/Review Sheet

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