An object travels in a circular path that has a diameter of 4 feet. The object makes 1,320 revolutions per hour. What is the linear velocity, in miles per hour, of this object
we know that circumference=pi*D where D is the diameter diameter=4 ft circumference=4*pi ft if one revolution is -------------> 4*pi ft 1320 rev-------------> x x=1320*4*pi-----> x=5280*pi ft/hout
convert ft to miles 1 mile-----------> 5280 ft so 5280*pi ft----------> is pi mile 5280*pi ft/hour------> is equal to pi mile/hour
