Pre-Lab Questions1. In this lab, you will be rotating a mass on one side of a string that isbalanced by a second mass on the other end of the string (Figure5). Apply Newton's Second Law of Motion to mass 1, m1, and mass2, m2, to solve for the period of mass 1.Hint: assume m1= 4m2. How is the centripetal force on m1 related tothe force of gravity on m2?(m1v2)/l = m2g(lg)/4 = v^22. Draw a free body diagram and solve for the centripetal acceleration in terms of θ and g for one person riding on the amusement park ride in Figure 3. Tan (θ)= v^2/(lg)3. The around the world yo-yo trick is completed when you twirl a yo-yo in a vertical circle. If the yo-yo was in uniform circular motion, compare the force of tension at thetop of the circle to the force of tension at the bottom of the circle.Hint: Drawing a free body diagram will be helpful.T(top)= [mv^2/l] – mgT(bottom) = [mv^2/l] +mg© 2014 eScience Labs, LLC.All Rights Reserved Figure 5: Rotating mass.© 2014 eScience Labs, LLC.All Rights
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