Engineering Board Exam Reviewer · Physics · medium
What length should a simple pendulum have for a period of 2 s (a 'seconds pendulum')? (g = 9.81 m/s2)
- 6.2452 m
- 1.5613 m
- 0.9940 m
- 2.0000 m
Answer
C. 0.9940 m
Solution
L = g(T/2π )2 = 9.81(2/2π )2 = 0.9940 m.
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