Question

An
object
of
mass
‘m‘
is
kept
on
the
floor
of
a
lift.
What
will
be
the


apparent
weight
of
the
object
when
the
lift
moves
with
a
constant


speed
‘v’
downwards?​

Answer 1

Answer:

If a body of mass

is carried by a lift moving with an upward acceleration

, then the forces acting on the body are (i) the reaction

on the floor of the lift upwards (ii) the weight mg of the body acting vertically downwards. The equation of motion will be given by