Question

A 7.5 kg block is placed on a table. If it's bottom surface area is 0.6m2, how much pressure does the block exert on the tabletop?

A. 376.5 Pa
B. 73.5 Pa
C. 226.5 Pa
D. 122.5 Pa

Answer 1

Yeh its D.

ddddddddddddddddddd for the win

Answer 2

Pressure is defined as the force per unit area. This measurement is more convenient to use for describing a force exerted. The standard unit for pressure is Pascal. For this problem, force is the gravitational pull from the block. Calculations are as follows:

P = F/A where F = mg

F = 7.5 ( 9.81) = 73.6 N

P = 73.6 N / 0.6 m^2 = 122.5 Pa

Thus, the answer is D.