A small block of mass is kept on a rough wedge inclined at

PHYSICS · Numerical · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A small block of mass

1\,\mathrm{kg}

is kept on a rough wedge inclined at

45^\circ

, fixed in an elevator. The elevator moves upward with uniform velocity

v=2\,\mathrm{m\,s^{-1}}

, and the block does not slide on the wedge. Find the work done by friction on the block in

1\,\mathrm{s}

. Take

g=10\,\mathrm{m\,s^{-2}}