Answer: Doubles.
- A Doubles
- B Quadruples
- C Halves
- D Remains same
Correct answer: A. Doubles
Explanation: T = 2π√(m/k). If m increases 4 times, T increases by √4 = 2 times. The period doubles.
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.