Question

in which of the following situations no work is being done ? a)sifting a box of biscuits from lower self to be higher self in the kitchen b)throwing a ball c) pushing a baby stroller on a road D)just holding a book in your hand for 2 minutes​

Answer 1

Answer:

C: pushing a baby stroller in the road

Explanation:

as displacement is normal to the direction of force

Answer 2

Answer:

just holding a book in your hand for 2 minutes