Question

a vertical drde. 26 Riding on a hodlzontal disk that is rotaling at constant speed about lts vertical ads Pdiction preven rock from iding Rock is moving simight out of the paper 27 Resing against the frictionless Inside wall of a cone 28. Stuck by tidction against the Inalde wall of a drum totaling about its vertical mda at coubnt peed. Not | rotating about lts vertial? l on lint speed. accelerating vertica lly. Moving straight out of the paper Rock is moving straight out of the paper 29. Suspended from a spring Puled downward lightly and releaned. No Eriction. 32 Suspended from a speing. Moving upwend through from a spdn through the equilibrilum pasition. No friction VOL 31,FEB 1993