physics problem,why bounce higher and higher ?

I make 2 actors,and make gravity to 1000,
one actor are movable,and bounce on another non-movable.
why the actor bounce higher and higher ?
can I fixed the bounce hight ?
thanks.
one actor are movable,and bounce on another non-movable.
why the actor bounce higher and higher ?
can I fixed the bounce hight ?
thanks.
Comments
it works!