GRAVITATION

ASSIGNMENTS

1. Discuss how acceleration due to gravity varies
   (a) from point to point on earth’s surface(b) height above the earth’s surface(c) depth below the earth’s surface

2. (a) Define gravitational field intensity of gravitational field at a point. What are its units of intensity?
   (b) Derive an expression for the gravitational field intensity due to a point mass M at a distance r from it. Also show that it is equal to free fall acceleration of mass at that point.