Question

5. A girl wearing a heel of area 1 cm² exerts a force of 20 N. The pressure on the ground is:

(a) 20 pascal
(b) 200 pascal
(c) 2000 pascal
(d) 2 pascal
​

Answer 1

Answer:

$<font color =purple>$

You must know that Pressure= Force/ Area

So we have ,

Force= 500N

Area=1 Square cm = 10^-4 Square meter.

**In question the area must be 1 Square cm .

So we get Pressure=

5*10^6 Newton/Square meter = 5*10^6 Pascal.

UNITS

Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per Squaremeter; similarly, the pound-force per square

Answer 2

Answer:

Thrust= 20 N

Area= 1 cm = 0.01m

Pressure= Thrust/Area

Pressure=20/0.01

Pressure=2000 pascal

so, option c is ur answer....