Question

In which of the situations is NO work being done?
iA boy lifting a book
iiA coolie standing with a box on his head
iiiWhen a boy is climbing the stairs
ivA cyclist pedalling a cycle

Answer 1

Answer:

1 situation.............

Answer 2

Answer:

<i> No , there is no work being done because there is no net displacement in the body .

<ii> No , there is no work being done because there is no net displacement in the body.

<iii> No , there is no work being done because there is no net displacement in the body .