Answer to Question #72313 in Mechanics | Relativity for surendra thapa magar

Question

A man carrying a bucket of water walking on a level road with uniform velocity does no work ? true or false ?

Answer 1

The work done against gravitational force is zero. since no
displacement along the gravitational force direction. But it will be
done a work along the direction of velocity. Since he is going against
frictional force, and moving a distance.

most of the books it is written as the work done is zero, as it is
calculated against only the gravitational force. But in actual
practice, there will be a work done against frictional force.