Final answer:
To find the pressure under a girl's foot, divide the force she exerts by the area of her shoe. In this case, the pressure is approximately 19,588.57 Pa.
Step-by-step explanation:
To calculate the pressure under the girl's foot, we can use the formula: pressure = force/area. The force can be calculated using the equation: force = mass × gravity, where gravity is approximately 9.8 m/s². First, convert the area from cm² to m² by dividing it by 10,000. Then, calculate the force by multiplying the mass by gravity. Finally, divide the force by the area to find the pressure in Pascals.
Given: mass = 33.6 kg and area = 168 cm²
Area in m² = 168 cm² ÷ 10,000 = 0.0168 m²
Force = 33.6 kg × 9.8 m/s² = 329.28 N
Pressure = 329.28 N ÷ 0.0168 m² = 19,588.57 Pa
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