Question

In which case work is done and why?

A boy swimming in a tank.

Answer 1

• Analyzing problem:

When a boy is swimming in a tank:

• Force is applied
• Boy is displaced

• The formula of work done:

W=F$\times$d

where F = force applied to the object

and d =displacement of the object

• Conclusion:

In the case of a boy swimming in a tank, we have force as well as displacement, so the work will be done.

• Answer:

In this case, work is done.