# 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 $$1\text{ s}$$.

• Assume $$g= 10\text{ m/s}^{2}$$.