A block of mass 3 kg is held at rest against a rough vertical wall by a horizontal force of magnitude 50 N directed towards the wall. The wall is to the left of the block.
Use g=9.8g=9.8g=9.8 m s−2^{-2}−2.
Find the magnitudes and directions of the normal reaction and frictional force exerted by the wall on the block.
Hence find the magnitude and direction of the contact force exerted by the block on the wall.