Question

A body of mass m is placed on the floor of the lift. Find its apparent weight when the lift is (I) moving upwards with uniform velocity (ii)moving downwards with uniform acceleration a (iii) falling freely. Take acceleration due to gravity equal to g.

Answer 1

moving downwards with uniform acceleration a falling freely.

Answer 2

i)don't know    ii)W=m(g-a)      iii)W=mg