A girl wearing a heel of area 1cm2 exerts a force of 20N. The pressure on the ground is
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Solution :
Given ,
- Area of her heel = 1 cm²
- Force exerted by her heel = 20 N
We need to find ,
- Pressure exerted by the girl on the ground = ?
As we know that ,
P = F/A
Where ,
- P → pressure = ?
- F → force = 20N
- A → Area = 1 cm²
Firstly , we need to convert the units to S.I. units
However , by the given information force is already in S.I. units ( Newton )
1cm² → m²
• 1cm² = 1/0000 m² = 0.0001 m²
Substituting the values we have ,
⇒ P = 20/0.0001
⇒ P = 200000 pa
Hence , pressure exerted by the girl on the ground = 200000 pascal
Answered by
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Answer: A girl wearing a heel of area 1 cm square 'exerts a force of 20 N. The pressure on the ground is(a) 20 pascal.
Explanation:
Answer:
Thrust= 20 N
Area= 1 cm = 0.01m
Pressure= Thrust/Area
Pressure=20/0.01
Pressure=2000 pascal
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