A block is pulled along a smooth horizontal surface. Use the data given to solve the following.
a. (i) A constant horizontal force of 20N is applied to a 4kg block initially at rest. Calculate the acceleration produced.
b. (ii) The force continues to act over a distance of 10m. Find the speed of the block at the end of this distance.
c. (iii) Determine the work done by the force during the 10m displacement.
d. (iv) Calculate the kinetic energy gained by the block and verify whether it equals the work calculated in part (iii).