AQA A-level Physics Year 2 Student Book Answers
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AQA A-Level Physics Year 2 Student Book Answers Chapter 1 ASSIGNMENT 1 A1 The total lateral friction on the tyres to just avoid the car going off at a tangent is equal to the required centripetal ... force: F = m v 2 r = 690´(120´10 3 ¸3600) 2 70 =10952 =11000 N A2 The asymmetric curved shape and angle of a racing car aerofoil makes moving air flow faster below it than above, so the air pressure is lower below the aerofoil. This creates a downward force on the aerofoil pushing the car downwards. A3 At the Abbey bend, g-force = centripetal acceleration acceleration due to gravity = v 2 r g = (120´10 3 ¸3600) 2 ¸70 9.81 =1.6 So the g-force typically experienced by a driver at the Abbey bend is 1.6g. [Show More]
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