Question

one example of negative work ?

Answer 1

eg
scribbling on the walls
littering the public property
dirting the tourist sites

Answer 2

examples of negative work:
1. work done by the frictional force ,when we push a book tom a distance
2. work done by gravitational force when we climb a tree
3. work done by buoyant force , when a coin is sinking

HOPE IT HELPS....