Question

A solid sphere and a hollow sphere of radius r are rolling down an inclined plane of height h what is the ratios of velocities of solid sphere to hallow sphere on reaching bottom is

Answer 1

Answer:

√25/21

Step-by-step explanation:

ROTATIONAL INERTIA IS MORE ON SOLID SPHERE SINCE ITS MASS IS CONCENTRATED ON TE CENTER BUT FOR HOLLOW CYLINDER IT S MASS IS CONCENTRATED ON ITS INNER SURFACE EDGES SO ROTATIONAL INERTIA IS LESS .SO SOLID CYLINDER COMES FIRST

Answer 2

1. in case of rolling down an inclined plane