Apparatus: set of masses, centrifugal force apparatus Description: Swing ball around in a circle above your head, and adjust the length of the string by raising or lowering the metal tube. Shorter length results in higher speed. PIRA 1D50.20
Apparatus: set of masses, centrifugal force apparatus Description: Swing ball around in a circle above your head, and adjust the length of the string by raising or lowering the metal tube. Shorter length results in higher speed. PIRA 1D50.20
