Questions
A point P lies on the axis of a ring of mass M and radius a, at a distance a from its centre C. A small particle starts from P and reaches C under gravitational attraction only. Its speed at C will be
a
b
c
d
zero
detailed solution
Correct option is B
Let mass of particle be m , K.E. = ui - uf (Increase in K.E. = decrease in P.E.)Talk to our academic expert!
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