A-LevelMathematicsMechanicsMay/June 2021Paper 4 Q59 Marks
A car of mass 1400 kg is towing a trailer of mass 500 kg down a straight hill inclined at an angle of 5° to the horizontal. The car and trailer are connected by a light rigid tow-bar. At the top of the hill the speed of the car and trailer is 20 m s⁻¹ and at the bottom of the hill their speed is 30 m s⁻¹.
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