The period T of a simple pendulum is given by T = 2π p L/g where L is the length of the pendulum and g is the acceleration due to gravity. Thus if L and T are measured, we can estimate g with g = 4π 2L/T2 . Assume that the period is known to be T = 1.5 s with negligible uncertainty, and that L is measured to be 0.559 ± 0.005 m. Estimate g, and find the uncertainty in the estimate. Also, find the relative uncertainty. (Hint: If uncertainty for T is negligible, it can be treated as a constant, i.e. g = 4π 2L/1.5 2 .)
The period T of a simple pendulum is given by T = 2π p L/g where L is the length of the pendulum and g is the acceleration due to gravity. Thus if L and T are measured, we can estimate g with g = 4π 2L/T2 . Assume that the period is known to be T = 1.5 s with negligible uncertainty, and that L is measured to be 0.559 ± 0.005 m. Estimate g, and find the uncertainty in the estimate. Also, find the relative uncertainty. (Hint: If uncertainty for T is negligible, it can be treated as a constant, i.e. g = 4π 2L/1.5 2 .)
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter1: Units And Measurement
Section: Chapter Questions
Problem 83AP: A marathon runner completes a 42.188-km course in 2 h, 30 min, and 12s. There is an uncertainty of...
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The period T of a simple pendulum is given by T = 2π p L/g where L is the length of the pendulum and g is the acceleration due to gravity. Thus if L and T are measured, we can estimate g with g = 4π 2L/T2 . Assume that the period is known to be T = 1.5 s with negligible uncertainty, and that L is measured to be 0.559 ± 0.005 m. Estimate g, and find the uncertainty in the estimate. Also, find the relative uncertainty. (Hint: If uncertainty for T is negligible, it can be treated as a constant, i.e. g = 4π 2L/1.5 2 .)
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