The area of each heel of a shoe is 30cm^2. How much pressure will the shoes exert on the ground.if his mass is 90kg
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2
Answer:
294 kilopascal (when g = 9.8 m/s²)
Explanation:
Pressure = Force / Area
= mg/A
= (90 kg × 9.8 m/s²) / (30 cm²)
= 29.4 kg m/s² / cm²
= 29.4 kg m/s² / (10⁻⁴ m²)
= 29.4 × 10⁴ kg m/s² / m²
= 294 × 10³ pascal
= 294 kilopascal
A combined pressure of 294 kilopascal is exerted by the ground due to both of his heels.
If g is taken as 10 m/s² then Pressure will be 300 kilopascal.
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0
Pressure = 600 answer
40kg => 40*10N = 400N
area => 6 * 25 = 150cm => 1.5m
pressure => 400 * 1.5m = 600
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