Answer: 10 m/s².
- A 0.1 m/s²
- B 1 m/s²
- C 10 m/s²
- D 100 m/s²
Correct answer: C. 10 m/s²
Explanation: a<sub>max</sub> = Aω² = 0.1·100 = 10 m/s².
In SHM, displacement and velocity are 90° out of phase (v is maximum when x=0, and zero when x is extreme), while acceleration is always exactly opposite in sign to displacement, consistent with a = −ω²x.
Concept context
Simple harmonic motion, spring-mass, pendulum, energy in SHM, and resonance.