Question

The diagram shows a body of mass m situated at a point which is a distance R from thecentre of the Earth and r from the centre of theMoon.
79thScienceThe masses of the Earth and Moon are ME and MM respectively. The gravitational constant isG. The resultant gravitational force exerted upon the body at this point is zero. Calculate the distance R of the body from the centre of the Earth given that,r = 3.9 × 107m and ME = 81 MM

Answer 1

The diagram shows a body of mass m situated at a point which is a distance R from thecentre of the Earth and r from the centre of theMoon.

79thScienceThe masses of the Earth and Moon are ME and MM respectively. The gravitational constant isG. The resultant gravitational force exerted upon the body at this point is zero. Calculate the distance R of the body from the centre of the Earth given that,r = 3.9 × 107m and ME = 81 MM