A wheel of radius 1.9 feet is moving forward at 12 feet per second. How fast is the wheel rotating? Express the answer in radians per second, rounded to the nearest tenth. ) A pendulum swings through an angle of 25 each second. If the pendulum is 60 inches long, how far does its tip move each second? If necessary, round the answer to two decimal places. i have the answers I just don't know how to do it