Topic explanation

Standard explanation

a=−ω²x. Mean: v_max=Aω,a=0. Extremes: v=0,|a|_max=Aω². v=ω√(A²−x²).

Key points

• a=−ω²x.
• Max v at x=0.
• Max |a| at |x|=A.
• v=0 at ends.
• Differentiate x(t).
• Energy form for v.

Labelled diagram