Question

A 70 kg tree surgeon rides a cherry picker lift to reach the upper branches of a tree. What force does the lift exert on the tree surgeon when it's (a) at rest; (b)moving upward at a steady 2.3m/s; (c)moving downward at a steady 2.3m/s; (d) accelerating upward at 1.3m/s2 (e) accelerating downward at 1.3m/s2

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Newtons Laws of Motion

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