How much work does an elephant do while moving a circus wagon 20 meters with a pulling force of 200n

Given:

s(distance)= 20 meters

F(force)=200N

Now we know that

work done= Force applied x distance

Substituting the given values in the above formula we get

Work done= 20 x 200= 4000J

no. dot product   =0 when vecs at right angles