Question

The surface area of the end of a brick is 50 cm square. The surface area of the base of the brick is 200 cm square. Each brick weighs 50 N. What pressure is each of the bricks shown here exerting on the ground.​

Answer 1

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.

Answer 2

Answer: force=50n

Area=50cm2=50/10000m2

P=f/a=50/50*10000

=10000p