Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Mass of the earth (M) = 6 × 1024 kg
Mass of the Sun (m) = 2 × 1030 kg
G Universal constant = 6.67 × 1011 Nm2/kg2
The average distance between the two d = 1.5 × 1011 m.
F = `G xx (M_exxm_s)/r^2`
F = `(6.67 xx 10^-11 Nm^2 kg^-2xx (6 xx 10^24 xx 2 xx 10^30))/(1.5 xx 10^11m)^2`
F = 3.57 × 1022 N
Gravitational force between the earth and the sun = 3.57 × 1022 N
APPEARS IN
संबंधित प्रश्न
What happens to the force between two objects, if the mass of one object is doubled?
Three equal masses m are placed at the three corners of an equilateral triangle of side a. Find the force exerted by this system on another particle of mass m placed at (a) the mid-point of a side, (b) at the centre of the triangle.
Two concentric spherical shells have masses M1, M2 and radii R1, R2 (R1 < R2). What is the force exerted by this system on a particle of mass m1 if it is placed at a distance (R1+ R2)/2 from the centre?
A particle of mass 100 g is kept on the surface of a uniform sphere of mass 10 kg and radius 10 cm. Find the work to be done against the gravitational force between them to take the particle away from the sphere.
A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find :
the final velocity of the ball on reaching the ground .
Where will you weigh more: at the centre of the earth or at the surface of the earth?
What do you mean by a gravitational constant?
Mahendra and Virat are sitting at a distance of 1 m from each other.Their masses are 75 kg and 80 kg respectively. What is the gravitational force between them? (G = 6.67 × 10-11 Nm2/kg2)
Newton's universal law of gravitation applies to ______.
Ocean tides on Earth are mainly caused by:
