Question

in
3. Find the percentage decrease
the weight
weight of a body when taken a = 20km below
the surface of the earth & Re= 6400​

Answer 1

Answer:

Here d= 32 km R= 6400 km

weight of body at depth d is mg`

=mg(1-d/R)%

decrease in weight =( mg- mg`)/mg × 100= 32 / 6400×100 = 0.5%.