Four round objects namely a ring, a disc, a hollow sphere and a solid sphere with same radius R start to roll down an incline at the same time. Find out the order of objects reaching the bottom first?
A. solid sphere, disc, hollow sphere, ring
B. ring, disc, hollow sphere, solid sphere
C. disc, ring, solid sphere, hollow sphere
D. hollow sphere, disc, ring, solid sphere
Answer:A
Four round objects namely a ring, a disc, a hollow sphere and a solid sphere with same radius R start to roll down an incline at the same time. Find out the order of objects reaching the bottom first?
A. solid sphere, disc, hollow sphere, ring B. ring, disc, hollow sphere, solid sphere C. disc, ring, solid sphere, hollow sphere D. hollow sphere, disc, ring, solid sphere