Weight of the person: 60 kg
Area under one foot: 180 sq.cm

To find the pressure exerted by a person on the ground, we need to use the formula for pressure:

Pressure = Force / Area

In this case, the weight of the person is the force exerted on the ground. Weight is the force with which an object is pulled towards the center of the Earth due to gravity. It is given by the formula:

Weight = Mass * Acceleration due to gravity

The mass of the person is given as 60 kg. The acceleration due to gravity is approximately 9.8 m/s².

So, the weight of the person is:

Weight = 60 kg * 9.8 m/s² = 588 N

Now we have the weight of the person, which is the force exerted on the ground. We can substitute this into the formula for pressure:

Pressure = Force / Area

The area under one foot is given as 180 sq.cm. To convert this to square meters, we divide by 10,000 (since 1 sq.m = 10,000 sq.cm).

Area = 180 sq.cm / 10,000 = 0.018 sq.m

Substituting the values into the pressure formula:

Pressure = 588 N / 0.018 sq.m ≈ 32,666.67 Pa

Therefore, the pressure exerted by the person on the ground is approximately 32,666.67 Pascal (Pa).

Summary:
- Weight of the person: 60 kg
- Area under one foot: 180 sq.cm
- Weight = Mass * Acceleration due to gravity = 60 kg * 9.8 m/s² = 588 N
- Area = 180 sq.cm / 10,000 = 0.018 sq.m
- Pressure = Force / Area = 588 N / 0.018 sq.m ≈ 32,666.67 Pa

Pressure = Force/Area

={60×9.8}/1.80

=980/3

=326.67 Pascal