a quick question from the 2002 3U exam. Question 4, part c i, for those playing at home:
Particle whose displacement is x, moves in SHM so that
x(double dot) = -16x.
at time t=0, x = 1 and x(dot) = 4.
Show that, for all positions of the particle;
∣x(dot) ∣= 4√(2-x^2)
Hope this makes sence as...