A person presses a shovel with a force of 600 Newtons What pressure does a shovel exert on the soil if the width

A person presses a shovel with a force of 600 Newtons What pressure does a shovel exert on the soil if the width of its blade is 20 centimeters and the thickness of the cutting edge is zero point five millimeters Why are shovels sharpened sharply.

F = 600 N.

a = 20 cm = 0.2 m.

b = 0.5 mm = 0.0005 m.

P -?

The pressure of the force P is determined by the formula: P = F / S, where F is the force, S is the area on which this force acts.

We will consider the cutting edge of the shovel in the form of a rectangle with sides a and b.

S = a * b.

The formula for determining the pressure will be: P = F / a * b.

P = 600 N / 0.2 m * 0.0005 m = 6,000,000 Pa = 6 MPa.

The shovel is sharpened so that the pressure of the cutting edge of the shovel on the ground is as great as possible so that it can easily enter the ground.

Answer: the shovel exerts a pressure on the soil P = 6,000,000 Pa = 6 MPa.