Questions
16kg and 9kg are separated by25m. The velocity with which a body should be projected from the midpoint of the line joining the two masses so that it just escape is
detailed solution
Correct option is D
Potential energy of m at midway due to M1 and M2= kinetic energy -GM1md2+-GM2md2=12mv2 -2G(M1+M2)d=12v2 v=4G(M1+M2)d=4G(16+9)25=2GTalk to our academic expert!
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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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