Question

A solid sphere of mass 1kg rolls on a table with linear speed 2m/s. Find its total K.E

Answer 1

Β = k²/R²

For solid sphere
β = 0.4

Total kinetic energy = 0.5mv²[1 + β]
= 0.5 × 1 kg × (2 m/s)² × [1 + 0.4]
= 2.8 J