2. A child throws his yoyo horizontally about his head rather than using it properly. The yoyo has a mass of 0.200 kg and is attached to a string 0.800 meters long.

Question

a. If the yoyo makes a complete revolution each second, what tension must exist in the string?
b. If the tension in the string is doubled, what is the speed of the yoyo?

Thanks in advance