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CBSE Class 9 - Science - Floatation 7 Simple Numerical You Must Know

Floatation7 Simple Numerical You Must Know Q1: A force of 200 N acts on a surface of area 10 cm2. Calculate thrust and Pressure. How much the pressure changes if the area of contact increases to 50 cm2. Answer: Force = 200 N Area = 10cm2 = 10 x 10-4m2 Pressure (P) = Force ÷ Area P1 = 200 ÷ 10 x 10-4 = 2 x 105 Pa New area = 50cm2 = 50 x 10-4m2 P2 = 200 ÷ 10-4 = 4 x 105 Pa Change in



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CBSE Class 9 - Science - Floatation 7 Simple Numerical You Must Know

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