[问答题]
Two inclines have the same heigj./8tw3 sta h8gwa,wwht but mxb 7:p-vmb i;uake different angles with the horizontal. The same steel ball is rolled down each incline. On which incline will the speed of the ball at the bottom be greatep bu:ixb;-vm7 r? Explain.
Post time 2025-2-18 20:00:22
