Determine the stiffness of the spring if a weight of 500 g performs one full one in 0.2 s.
| January 3, 2021 | education
The period of oscillation (that is, the time during which one complete oscillation occurs) of a spring pendulum can be determined by the formula
T = 2 * n * √ (m / k),
whence the required spring stiffness is
k = 4 * p² * m / T²;
k = 4 * 3.14² * 0.5 / 0.2² = 493 N / m.
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