A 40-Kg Crate Is Being Lowered with a Downward Acceleration

Short Answer

A 40-kg crate is being lowered with a downward acceleration is 2.0 m/s² by means of a rope.
(a) What is the magnitude of the force exerted by the rope on the crate?
(b) What would be the magnitude of the force exerted by the rope if the crate were being raised with an acceleration of 2.0 m/s²?