for oscillation where at time = 0, x = 0 | for oscillation where at time = 0, x = ±A |
x = A sin(wt) = A sinq | x = A cos(wt) = A cosq |
v = dx/dt = Aw cos(wt) = Aw cos q | v = dx/dt = -Aw sin(wt) = -Aw sinq |
a = dv/dt = d2x/dt2 = -Aw2 sin(wt) = -Aw2 sin q | a = dv/dt = d2x/dt2 = -Aw2 cos(wt) = -Aw2 cosq |