A block of mass 10 kg, a force 20N is applied to the block and it displaced the block by 4 m. If angle between force and displacement is $90^0$. Calculate the work done by force.

A block of mass $m=2.50kg$ is pushed a distance $d=2.20m$ along a frictionless, horizontal table by a constant applied force of magnitude $F=16.0N$ directed at an angle $\theta =25.0^0$ below the horizontal as shown in above figure. Determine the work done on the block by (a) the applied force, (b) the normal force exerted by the table, (c) the gravitational force, and (d) the net force on the block.