AQA A Level Physics Year 2 Student Book Answer

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´103 ¸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 accelerat...