Q23 of 49 Page 10

Calculate the force of gravitation between the earth and the sun, given that the mass of the earth = 6× 1024 kg and of the sun = 2 × 1030 kg. The average distance between the two is 1.5 × 1011 m.

We know that, Gravitational force acting between two object is given by:

F = G×         ...........(1)

where,

G is the Gravitational constant = 6.7 × 10-11 Nm2/kg2


m1 is the Mass of earth = 6 × 1024 kg


m2 is the Mass of sun, m2 = 2 × 1030 kg


r is the distance between the earth and the sun= 1.5 × 1011 m


Now, putting all these values in  equation 1, we get:


F =


F = 3.57 × 1022 N

The Force exerted on the Earth by the sun is 3.5 × 1022 N
 

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