A disk shaped yoyo (m=220 grams) has a 70 cm long string. The radius of the central winding peg is 2.5 mm, the outer radius of the yoyo is 5.6 cm.
A) How much Torque is applied to this yoyo by the string?
B) How long until the yoyo hits the bottom of the throw?
C) What is the total kinetic energy of the yoyo just before it hits this point?
D) Several Yoyo’s instead of using a disk shape, use half hemispheres. What SPECIFIC advantage would this give the yoyo?