Question

A block of concrete weights 800 N. Its base is a square with 2 m long. what pressure does the concrete block exert on the ground?

Answer 1

p=f/a

p= 800/2

p= 400pascal

Answer 2

Answer:

200 Pa

Explanation: force = 800 N

side of square = 2 m

∴ area of surface touching the ground = (2 x 2) m²

                                                                   = 4 m²

∴ Pressure applied by the block on the ground = force / area

                                                                                  = (800 / 4) N/m²

                                                                                  = 200 N/m² or 200 Pa