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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A satellite is moving round the earth in a circular orbit. The following statements are given. (i) It is moving with a constant velocity. (ii) It suffers no acceleration. (iii) its angular momentum w.r.t. the earth remains conserved. (iv) Its distance from centre must be equal to sqrt(2) times of earth’s radius. The correct option is

A satellite is moving round the earth in a circular orbit. The following statements are given. (i) It is moving with a constant velocity. (ii) It suffers no acceleration. (iii) its angular momentum w.r.t. the earth remains conserved. (iv) Its distance from centre must be equal to sqrt(2) times of earth’s radius. The correct option is

A circular ring of mass M and radius 'a' is placed in a gravity free space. A small particle of mass m placed on the axis of the ring at a distance sqrt(3)a from the center of the ring is released from rest. The velocity with which the particle passes through the center of the ring is