Question

The surface area of the end of a brick is 50 sq.cm. The surface area of the base of another brick is 200 sq.cm. Each brick weighs 50 N. What pressure is each of the bricks exerting on the ground?

Answer 1

Answer:

Explanation:

Pressure = Thrust/Area

Thrust = Weight = 100 N

Area of the brick in contact with the ground = 10 cm x 5 cm

= 50 x 10−4 m2

Pressure exerted by the brick on the ground = 100 N/(50 x 10−4 m2) = 1.6 x 104 N/m2

= 1.6 x 104 Pa.