A square metal plate is used to support an engine while it is being repaired in a workshop.
(i) The engine exerts a vertical load of 5.0kN uniformly on the plate. The plate has side 0.20m. Calculate the pressure exerted on the concrete floor in pascal.
(ii) Express your answer in kilopascal and in bar.
(iii) Keeping the same load, the mechanic wishes to limit the pressure on the floor to 50kPa. What should be the minimum side length of a square plate that will achieve this?