Simple PendulumHardQuestion 31172
Question
A pendulum of length 1 m swings with amplitude 4 cm. Maximum speed of bob is approximately (g = 10 m/s²):
- A0.12 m/sCorrect
- B0.04 m/s
- C0.4 m/s
- D1.2 m/s
Correct answer
0.12 m/s
Explanation
ω = √(g/L) = √10 ≈ 3.16 rad/s. v_max = ωA = 3.16 × 0.04 ≈ 0.126 m/s ≈ 0.12 m/s.