Physics · Oscillations
In a simple pendulum of length l, the bob is pulled aside from its equilibrium position through an angle θ and then released. The bob passes through the equilibrium position with a speed of:
- 1√2gl(1 + cos θ)
- 2√2gl sin θ
- 3√2gl
- 4√2gl(1 - cos θ)✓
Correct answer
√2gl(1 - cos θ)
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