A-LevelMathematicsMechanicsOct/Nov 2023Paper 4 Q69 Marks
A railway engine of mass 120000kg is towing a coach of mass 60000kg up a straight track inclined at an angle of α to the horizontal where sin α = 0.02. There is a light rigid coupling, parallel to the track, connecting the engine and coach. The driving force produced by the engine is 125000N and there are constant resistances to motion of 22000 N on the engine and 13000N on the coach.
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