A body falls towards earth in air. Will its total mechanical energy be conserved during the fall ? Justify.

A body falls towards earth in air. Will its total mechanical energy be

1.	A body falls towards earth in air. Will its total mechanical energy be conserved during the fall ? Justify.
Answer» Solution :No, because a small PART of its energy is used against AIR resistive force which is non-conservative force. In this CONDITION, gain in KE < loss in PE.