Question

The following figure shows a brick of weight 2 N and dimensions 20cm x 10cm x 5cm placed in three different positions on the ground. Find the pressure exerted by the brick in each case

Answer 1

Answer:

1st case, 1000 pa

2nd case, 4000 pa

3rd case, 2000 pa

Explanation:

We know that P= A/F

, here A=effective area

In first case , P= A/m = 0.1×0.2/2×10

=1000Pa

In second case , P= 0.05×0.1/2×10

=4000Pa

In third case , P= 0.05×0.2/2×10

=2000Pa