[问答题]
Two solid spheres simultaneously start rolling (fre z1hhmh54*ss om rest) down a rb*xe(ud0 t- w-jfxx9 c-k. 5tcqjx(in incline. One sphere has twice the radius and twice the mass tx x5-9j-fj (xb*0qwrxeuctcid .k -( of the other. Which reaches the bottom of the incline first? Which has the greater speed there? Which has the greater total kinetic energy at the bottom?
Post time 2025-2-18 20:00:22
