Please check my work on question A and help with question b. Thanks!

1. In this lab, you will be rotating a mass on one side of a string that is balanced by a second mass on the other end of the string (Figure 5). Apply Newton's Second Law of Motion to mass 1, m, and mass 2, ma, to solve for the period of mass 2. a. Hint: assume m,= 4ma. How is the centripetal force on my related to the force of gravity on m? Figure 5: Rotating mass. a. mig= m2V2/r 4mag= m2V2/r V2=4rg V= V4rg T=2n/v T=2x/V4rg = 2nVr/V4g b. Use the relationship above and the definition of period to express the period of mass 2 in terms of the radius of the rotation