EM-789

Radian measure

E Math · Secondary 3 · Hard · Radian measure

A pendulum has length 0.80 m. The period of oscillation is given by

T = 2\pi \sqrt{\dfrac{L}{g}}

, where

g = 9.8\,\text{m s}^{-2}

. What is the period

T

of the pendulum, correct to 3 significant figures?

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