Consult Interactive LearningWare 63 for a review of the conc

Consult Interactive LearningWare 6.3 for a review of the concepts on which this problem is based. A gymnast is swinging on a high bar. The distance between his waist and the bar is 1.11 m, as the drawing shows. At the top of the swing his speed is momentarily zero. Ignoring friction and treating the gymnast as if all of his mass is located at his waist, find his speed at the bottom of the swing Number Units Oo the tolerance is +/-2%

Solution

let\'s use conservation of energy,

energy at top of loop = energy at bottom of loop

mgh = 1/2 mv^2

9.8 (2.22) = 0.5 v^2

v = 6.59 m/s apprx