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',v0=−GMRUsing work energy theorem,m.GMR−GM5R=12mv22GMR1−15=VTalk to our academic expert!
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