# Physics Formula

**Topics:**Force, Kinetic energy, Classical mechanics

**Pages:**6 (746 words)

**Published:**December 11, 2012

| | | | | Quantity |Symbol |Formula | |% Error | |% Error = ( |A-M| ) x 100 /A | |% Uncertainty | |% Uncertainty = (Uncertainty x 100) / | | | |Measurement | |Distance (Linear displacement) |Dx |Dx = xf - xo | |Elapsed Time |Dt |Dt = t2 - t1 | |Instantaneous Speed |V |V = Dd / Dt | | | |(with t approaching zero seconds) | |Average Speed |Vavg |Vavg = (total distance | | | |traveled)/(total elapsed time) | |Acceleration |a |a = DV/Dt = (V2 - V1) / (t2 - t1) | |Final Speed |V2 |V2 = V1 + aDt | | Original Speed |V1 |V1 = V2 - aDt | |Elapsed Time |Dt |Dt = (V2 - V1) / a | |Kinematic Equations: |====> |(Uniform Acceleration) | |Final Velocity |V2 |V2 = V1 + aDt | |Displacement |Dx |Dx = V1Dt + 0.5(aDt2) | |Final Velocity |V2 |V22 = V12 + 2aDx | |Displacement |Dx |Dx = 0.5(V2 + V1)Dt | |Elapsed Time |Dt |Dt = (V2 -V1) / a | | | | | |Free Fall from Rest |V1 = 0.0 m/s |g = -9.8 m/s2 | |Final Velocity |V2 |V2 = gDt | | Displacement | Dx |Dx = 0.5(gDt2) | |Final Velocity |V2 |V22 = 2gDx | |Displacement |Dx |Dx = 0.5(V2 )Dt | |Elapsed Time |Dt |Dt = (V2) / g | |Elapsed Time |Dt |Dt = Sq. root of (2Dx/g) | | | | | | Dynamics | Equations | | |Force (Newton's 2nd Law) |F = Force |F = ma | | Friction |Ff |Ff = mFn | |Newton's Third Law...

Please join StudyMode to read the full document