A simple pendulum is $2\mathrm{.}5$ meters long and is set into motion. Assume the pendulum swings at a small angle in a place where gravitational acceleration is $9\mathrm{.}8\frac{(m)}{s^2}.$ Calculate the period of the pendulum using its length.

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$15$

Numeric $3$ points

A simple pendulum is $2\mathrm{.}5$ meters long and is set into motion. Assume the pendulum swings at a small angle in a place where gravitational acceleration is $9\mathrm{.}8\frac{m}{s^2}.$ Calculate the frequency of the pendulum's oscillation.

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Numenc $3$ points

A simple pendulum is $2\mathrm{.}5$ meters long and is set into motion. Assume the pendulum swings at a small angle in a place where gravitational acceleration is $9\mathrm{.}8.$ How long toes it take for the pendulum to complete $10$ full oscillations?