If a body weighing 40 kg is taken inside the earth to a depth to one fourth th radius of - Physics - Gravitation

Question

If a body weighing 40 kg is taken inside the earth to a depth to
one fourth th radius of the earth, the weight of the body at that
point is:

Ved Prakash Lakhera · Accepted Answer

The weight of the body at R4 is;    W=Mg=40×10=400N W'=W1-R4R=3W4=0
75W W'=400×0 75=300N

If a body weighing 40 kg is taken inside the earth to a depth to one fourth th radius of the earth, the weight of the body at that point is: