Two bodies with masses 
and 
are attached to the ends of an unstretchable cord, which is passed over a light pulley. When the heavier body is lifted through a height 
, the lighter body is right on the ground. The friction of the pulley is negligibly small. If the heavier body is dropped from height 
;
at what speed does it fall to the ground?
to what maximum height 
does the lighter body rise?
