The Total solution for NCERT class 6-12
Assumingthe earth to be a sphere of uniform mass density, how much would a body weighhalf way down to the centre of the earth if it weighed 250 N on the surface?
Weight of a body of mass m atthe Earth’s surface, W = mg = 250 N
Where,
= Radius of the Earth
Acceleration due to gravity at depth g (d)is given by the relation:
Weight of the body at depth d,