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Byju's Answer
Standard IX
Physics
Viscous Force
32. An aeropl...
Question
32. An aeroplane is flying with speed V m/sec. The area of the cockpit window is A square Metre. What is the force per unit area of the cockpit window?
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A child draws the figure of an aeroplane as shown. Here, the wings ABCD and FGHI are parallelograms, the tail DEF is an isosceles triangle, the cockpit CKI is a semicircle and CDFI is a square. In the given figure, BP ⊥ CD, HQ ⊥ FI and EL ⊥ DF. If CD = 8 cm, BP = HQ = 4 cm and DE = EF = 5 cm, find the area of the whole figure.