The bottom of a pendulum traces an arc 3 feet in length when the pendulum swings through an angle of 1/2 radian. Find the number of feet in the length of the pendulum.
The bottom of a pendulum traces an arc 3 feet in length when the pendulum swings through an angle of 1/2 radian. Find the number of feet in the length of the pendulum.
The sector of a cricle is given by the formula
$\displaystyle S=r \theta$ where theta is in radians so we get