A solid sphere of mass 1 kg rolls on a table with linear speed 2 m/s, – InterviewSolution

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1.	A solid sphere of mass 1 kg rolls on a table with linear speed 2 m/s, find its total kinetic energy.
Answer» Given : Mass of solid sphere (m) = 1 kg, Linear speed (v) = 2 m/s. Radius of gyration (k) for solid sphere `=sqrt((2)/(5))R` `therefore` Total kinetic energy, `E=(1)/(2) mv^(2)[1+(k^(2))/(R^(2))]` `=(1)/(2)xx1xx2xx2[1+(2//5R^(2))/(R^(2))]` `=2(1+(2)/(5))` `=2xx(7)/(5)=(14)/(5)` `=2.8J. `

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