[问答题]
Two solid spheres si;dhbjo4gvg/1r2ki :n:r):7fy b tcwwmultaneously start wxmvr: ,fa mdd 7m:ns2f1*kk /rolling (from rest) down an incline. One sphere has twice the radius and twice the mass of the other. Which reaches the bottom of the incline first? Which has the greater speed there? Which has the greater total kinetic enm, xwvs 7n:d*f2ak/mkm1r:fdergy at the bottom?
Post time 2025-2-18 20:00:22
