A solid cylinder and a sphere, having the same mass, rolls without slipping with the same linear velocity. If the kinetic energy of the cylinder is `75 J`, that of the sphere must beA. `60 J`B. `70 J`C. `80 J`D. `90 J`

A solid cylinder and a sphere, having the same mass, rolls without sli

1.	A solid cylinder and a sphere, having the same mass, rolls without slipping with the same linear velocity. If the kinetic energy of the cylinder is `75 J`, that of the sphere must beA. `60 J`B. `70 J`C. `80 J`D. `90 J`
Answer» Cylinder : `(1+(k^(2))/(R^(2)))(1)/(2)mv^(2)=(1+(1)/(2))(1)/(2)mv^(2)=(3)/(4)mv^(2)=75J` Sphere : `(1+(2)/(5))(1)/(2)mv^(2)=(7)/(10)mv^(2)=(7)/(10)(100)=70J`

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A solid cylinder and a sphere, having the same mass, rolls without slipping with the same linear velocity. If the kinetic energy of the cylinder is `75 J`, that of the sphere must beA. `60 J`B. `70 J`C. `80 J`D. `90 J`

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