A Roshelle is riding a bicycle whose wheels are 26 inches in diameter. If the wheels of rotates at 750 degrees in one sec. find the speed at which she is traveling, in mi/ hr.

Question

anonymous · Answer

750 degrees in one second is equal to 2.08 rotation per second, because the circumference of a circle is  C= 2πr the circumference of the wheel is C= 2π(13)   C= 81.68 inches. If one rotation is 81.68 inches, 2.08 rotation per second would be 169.89 inc/sec then we convert this to mi/hr. the answer is 9.65 mi/hr.