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A woman is wearing high heels. If she stands on the on one heels, she puts a pressure of 1200N/cm 2 on the ground and each heel has a surface area of 0.5cm 2 what is her weight in newtons? |
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Answer» downExplanation:You must know that Pressure= Force/ AreaSo we have ,Force= 500NArea=1 Square cm = 10^-4 Square meter.**In QUESTION the area must be 1 Square cm .So we get Pressure=5*10^6 Newton/Square meter = 5*10^6 Pascal.UNITSVarious units are used to express pressure. Some of these derive from a unit of force DIVIDED by a unit of area; the SI unit of pressure, the pascal (Pa), for EXAMPLE, is one newton per Squaremeter; similarly, the pound-force per squareinch (psi) is the traditional unit of pressure . |
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