How many vibrations does a metal ball make during 20 seconds, suspended on a thread 1.6 m long?
| February 9, 2021 | education
t = 20s
L = 1.6 m
N-?
The oscillation period T of a mathematical pendulum is determined by the formula T = 2 * square root of the length of the thread L. T = 2.53 s. The period is the time of one swing of the pendulum. In order to find the number of oscillations N, you need to divide all the time t by the time of one oscillation T. N = t / T = 20 s / 2.53 = 7.9
Answer: The pendulum will swing 7.9 times.
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