Taylor Schlotman, Andrea Sams, Katherine Bailey, and Nathan McDonough. TEAM 8! Nathan & The Girls. A Rube-Goldberg device created by: Taylor Schlotman, Andrea Sams, Katherine Bailey, and Nathan McDonough.

“8 The Great” EF 151- Section c1.

CALCULATIONS! In the pulley (angular velocity): V = ωr mgh = (1/2)mv^2 The ball at its initial height (C.O.E.): mgh = (1/2)mv^2 The ball collides with the bucket: m1v1 + m2v2 = (m1 + m2)v’ In the paper towel roll (torque): T = Iα In the pulley (angular acceleration): T = Iα Y: T – W = -mAy X: Ax = αr In the pulley (angular velocity): V = ωr Ball rolling down incline: PEi = mgh = (1/2)mv^2 + (1/2)I ω^2 Car in paper towel roll (center of mass): R = (m1r1 + m2r2) / (m1 + m2)

Beginning

Ball on the move

Lever

The end