Monday, November 21, 2011

weight is 0
at the centre of earth
why.....? and mass can't
be zero at any
where.why?
Ans-

weight is zero at the
centre of earth
because weight of a
body is the force with
which the body is
attracted towards the
centre of
earth.Obviously when
the body reaches the
centre of earth there
will be no force of
attraction b/w earth
and the body and hence
the weight becomes
zero at the centre of
earth