Question

Give one example where work done on an object is zero.Give one example where work done on an object is negative.

Answer 1

Answer:

when a koole left bag in his head then the work done said to zero.

Answer 2

Give one Example where work done on an object is zero. Ans = (1) The work done against gravity in moving a book horizontally on a table is zero. (2) If we try to move a heavy box, and the box is not at all moving, then the work done by us will be zero.