"What if: Keeping the length found in (a) fixed, by what factor would the length of the 3.50 m side have to be changed for the angles and to be equal? (Let y' be the new length of the 3.50 m side.)" y'/y = ___

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.