طارق أشرف
30-10-2007, 01:11 AM
a uniform rod AB of length 60cm, and weight 450gm.wt,rests partly within and partly outside, a fixed smooth hemispherical bowl of radius 15 root3cm long.if the rim of the bowl is horizontal,and the rod touches the internal surface of the bowl at A , and the rim at C where AC =45. find in the state of equilibrium of the rod: 1-measure of the angle of inclination of the rod to the horizontal 2-magnitude of each of the internal surface reactions of the bowl to the rod