Answer:
The ant is doing work but the elephant is not
Step-by-step explanation:
Work done = Force × Displacement
In case of ant and housefly,
Ants are dragging the housefly , so they are displacing the housefly from one point to the other by applying certain force , so we can say that they are doing work
In case of elephant and tree,
When the elephant is pushing the tree( applying force) , the tree is not moving which means that there is no Displacement, so work done will be
Work done = Force × Displacement
= Force × 0
= 0