Achild pulls a toy across the floor. is the work done on the toy positive, negative, or zero?

It wouldnt be zero but is that what its saying? or does it have more because if the baby is going left it would be positive if its going right it would be negative.

This is what i found “in a gas turbine engine, the combustor or combustion chamber is fed high pressure air by the compression system. early gas turbine engines used a single chamber known as a can type combustor. today three main configurations exist: can, annular and cannular (also referred to as can-annular tubo-annular).” i hope this you for what your looking for. can you plz mark me brainliest?

Answerwavelength;