5.5.144 - SHM displacement, velocity and acceleration equations

Use a = −ω²x, x = A cos ωt, v = −Aω sin ωt, a = −Aω² cos ωt, T = 1/f = 2π/ω, and ω = 2πf for simple harmonic motion.

Use - shm displacement, velocity and acceleration equations to connect the rule to the data and decision in the question.

This matters because - shm displacement, velocity and acceleration equations determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - shm displacement, velocity and acceleration equations to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: use the formula and units given in the question, show the substitution and interpret the result; the calculation alone is not the conclusion.