A simple pendulum has length 2.5 m. Taking m/s², what is its time period?
Answer and explanation
Correct answer: D. 1π s
- Step 1: The period is s. Answer: 1π s. Why not the others: 2π s: forgets to take the square root properly. 0.5π s: uses the wrong factor of 2. 1 s: drops π.
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