A lady weighing 80 Kg is standing on pencil heels, each having an area of 5 cm². Calculate the pressure exerted by the girl on the ground
Answers
To Find :
- pressure exerted by the girl on the ground.
Solution :
- weight of lady = 80kg
- Area = 5cm²
Area = 5 × (10-²)² × 2
Area = 10/10-⁴ m²
Area = 10-³ m²
we know that,
- Weight = mass × gravity
- Force = ma or f = mg
So,
- Weight = force = mg
Force = 80 × 10 = 800N
Pressure = Force/Area
Pressure = 800/10-³
Pressure = 800 × 10³
pressure = 800,000 pa
Hence
- pressure exerted by girl 800,000 pa.
━━━━━━━━━━━━━━━━━━━━━━━━━
Given : A lady weighing 80 Kg is standing on pencil heels, each having an area of 5 cm².
To Find : Calculate the pressure exerted by the girl on the ground
Solution:
Lady weight = 80 kg
m = 80 kg
Force = mass * acceleration
a = g = 10 m/s²
Force by Lady = 80 * 10 = 800 N
pencil heels, each having an area of 5 cm²
As there are 2 pencil heels
Total area = 2 * 5 = 10 cm²
1 cm = 1/100 m = 10⁻² m
1 cm² = (10⁻²)² = 10⁻⁴ m²
Total area = 10 * 10⁻⁴ = 10⁻³ m²
Pressure = Force / Area
= 800 / 10⁻³
= 800 * 10³ N/m²
= 800 k N/m²
= 800 k Pa
= 800000 Pa
pressure exerted by the girl on the ground = 800000 Pa
Learn More:
A man weighing 60 kg stands on a wooden plank 1 m long and 40 ...
https://brainly.in/question/14108702
A force of 100N is applied to an object of area 2m square . Calculate ...
https://brainly.in/question/4547283
7 Pascal pressure exerted by 500 gm water when area of base is 0.7 ...
https://brainly.in/question/22453447