If a hollow cylinder and a solid cylinder are allowed to roll down an inclined plane, which will take more time to reach the bottom?

Options

A. Hollow cylinder
B. Solid cylinder
C. Same for both
D. One whose density is more

Answer

A

Explanation

`tau prop sqrt(1+(K^(2))/(R^(2)))implies((K^(2))/(R^(2)))_("solid cylinder") lt ((K^(2))/(R^(2)))_("hollow cylinder")`
`impliest_("solid cylinder") lt t_("hollow cylinder")`.