Questions
A solid sphere of mass 2 kg rolls up a 300 incline with an initial speed of 10 ms-1. The maximum height reached by the sphere is (Take, g = 10 ms-2)
detailed solution
Correct option is B
In case of pure rolling of sphere, KRKT=25Total kinetic energy = 7/5 times the translational kinetic energy. At highest point, whole of the kinetic energy will be converted into potential energy.∴ mgh=7512mv2 or h=7v210g=7(10)210×10=7 mTalk to our academic expert!
Similar Questions
A solid cylinder of mass 2 kg and radius 50 cm rolls up an inclined plane of angle inclination 300. The centre of mass of cylinder has speed of 4 ms-1. The distance travelled by the cylinder on the inclined surface will be
(Take, g = 10 ms-2
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