Questions
A point P is on the axis of a fixed ring of mass M and radius R, at a distance 2R from the centre O. A small particle starts from P and reaches O under the gravitational attraction only. Its speed at O will be
detailed solution
Correct option is D
Gravitational potential at ‘P’,vp=−GM5RGravitational potential at ‘O’,vo=−GMRUsing work energy theorem,W=ΔK⇒mvP−vO=12mv2mGMR−GM5R=12mv22GMR1−15=vTalk to our academic expert!
Similar Questions
A shell of mass M and radius R has a point mass m placed at a distance r from its centre. The gravitational potential energy U (r) vs r will be
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