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Question #185inputverified

During last year acceleration a top speed of 100 km/h was reached. Due to big impreovement in the new drivetrain, the new vehicle reaches a top speed of 120 km/h. The aerodynamics chief has some worries about the stability of the rear wing bracing due of the highr aerodynamics load. Given the geometry below, by how much % does the bearing force in point A change in comparison to last year (The aerodynamic package did not change and therefore some values can be assumed for both vehicles). All the useful parameters are given below: cL=3.8, cD=1.2, A=1m², p=1.1kg/m³, L1=50mm, L2=100mm, H1=125mm, H2=165mm Please use the following format: 12.3 or 1.23 (no ',' comma, no latters), round to 3 significant digits.

Blue triangular rear-wing support schematic. Left support A is shown on rollers at ground level; lower central support B rests on a triangular fixed support. Two slanting members from A and B meet at an upper-right apex. At the apex, a red horizontal F_Drag arrow points right and a red vertical F_Lift arrow points down. Horizontal dimensions L_2 (from A toward the apex) and L_1 (from B toward the apex), and vertical dimensions H_1 and H_2, are indicated by light-blue dimension arrows.
AI image description

Blue triangular rear-wing support schematic. Left support A is shown on rollers at ground level; lower central support B rests on a triangular fixed support. Two slanting members from A and B meet at an upper-right apex. At the apex, a red horizontal F_Drag arrow points right and a red vertical F_Lift arrow points down. Horizontal dimensions L_2 (from A toward the apex) and L_1 (from B toward the apex), and vertical dimensions H_1 and H_2, are indicated by light-blue dimension arrows.

  1. 44Correct

Official answer

44

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