Question

A solid ring, sphere and a disc are rolling down from the top of the same height, then the sequence to reach on the surface is
A. ring, disc, sphere
B. sphere, disc, ring
C. disc, ring, sphere
D. sphere, ring, disc

Answer 1

For ring, `(k^(2))/(R^(2))=1`
Solid sphere `=(2)/(5)=0.4`
Disc, `(k^(2))/(R^(2))=0.5`