A-LevelMathematicsDifferential equationsMay/June 2017Paper 5 Q48 Marks
A small object of mass 0.4 kg is released from rest at a point 8 m above the ground. The object descends vertically and when its downwards displacement from its initial position is x m the object has velocity v m s¯¹. While the object is moving, a force of magnitude 0.2v² N opposes the motion.
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