# No Work?

**Classical Mechanics**Level 3

A small block of mass \(1\text{ kg}\) is kept on a rough inclined wedge of inclination \(45^\circ\) fixed in an elevator. The elevator goes up with a uniform velocity \(v=2 \text{ m/s}\) and the block does not slide on the wedge. Find the work done by the force of friction on the block in \(1\text{ s}\).

Answer in

**SI**units.Assume \(g= 10\text{ m/s}^{2}\).