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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The sun’s mass is about 3.2 x 10^5 times the earth’s mass. The sun is about 400 times as far from the earth as the earth is from the moon. Assume that the sun – moon distance is constant and equal to sun – earth distance. The ratio of the magni9tudes of the gravitational pull of the sun on the moon ( Fms ) and of the earth on the moon ( Fem ) will be Fms/ Fme = ‘*’. Find ‘*’.

The sun’s mass is about 3.2 x 10^5 times the earth’s mass. The sun is about 400 times as far from the earth as the earth is from the moon. Assume that the sun – moon distance is constant and equal to sun – earth distance. The ratio of the magni9tudes of the gravitational pull of the sun on the moon ( Fms ) and of the earth on the moon ( Fem ) will be Fms/ Fme = ‘*’. Find ‘*’.

A particle of mass m is subjected to an attractive central force of magnitude k/r 2 at a distance a from the centre of force if the distance of other extreme position is b. Find a/b its speed is (k/2ma) ​ k being a constant. If at the instant when the particle is at an extreme position in its closed orbit