Question

In which case work is done and why?

A girl climbing a stair case

Answer 1

• Analyzing problem:

When a girl is climbing a staircase:

• Force is applied
• Girl is displaced

• The formula of work done:

W=F$\times$d

where F = force applied on the object

and d =displacement of the object

• Conclusion:

In the case of a girl climbing a staircase, we have force as well as displacement, so the work will be done.

• Answer:

In this case, work is done.