v = u + at (for constant acceleration, a) v2 = u2 + 2as (for constant acceleration, a) s = ut + ½ at2 (for constant acceleration, a) Fnet = ma Fk = μkR Fs ≤ μ R W = F cos θ * s K = ½ m v2 W = Kf - Ki Gravitational Potential Energy = mgh Potential energy stored in spring = ½ kx2 p = m v | τ = r x F = r F sin θ τ = I α (Analogous to F = ma) Rotational KE = ½ I ω2 L = I ω (Analogous to p = mv) I1 ω1 = I2 ω2 for τnet = 0 a = acceleration [ms-2] a(c.p) = centripetal acceleration [ms-2]  = average acceleration [ms-2]
at = tangential acceleration [ms-2] F = force [N] F(c.p) = centripetal force [N] Fg = gravitational force [N] Fk = kinetic friction [N] Fs = static friction [N] g = acceleration of gravity = 9.8 ms-2 G = gravitational constant = [Nm2kg-2] h = height [m] I = impulse [kg ms-1] k = spring constant [Nm-1] K = kinetic energy [J] L = angular momentum [m2kgs-1] m = mass [kg] M = mass [kg] p = linear momentum [kgms-1] P = power PE = potential energy = [J] r = radius [m] R = normal force (or Reaction force) [N] s = distance or arc length [m] t = time [s] T = period [s] u = initial velocity [ms-1] v = velocity [ms-1] vt = tangential velocity [ms-1]  = average velocity [ms-1]
x = spring extension [m] W = work [J] α = angular acceleration [s-2] μk = coefficient of kinetic friction μs = coefficient of static friction ω = angular velocity [s-1] ωo = initial angular velocity [s-1] Δ = represents change θ = angular displacement [rad] τ = torque [mN] |