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# Solved: A 74-kg tree surgeon rides a cherry picker lift to reach the upper branches of a

ISBN: 9780134202709 403

## Solution for problem 42 Chapter 4

Essential University Physics | 3rd Edition

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Problem 42

A 74-kg tree surgeon rides a cherry picker lift to reach the upper branches of a tree. What force does the lift exert on the surgeon when its (a) at rest; (b) moving upward at a steady 2.4 m/s; (c) moving downward at a steady 2.4 m/s; (d) accelerating upward at 1.7 m/s2 ; (e) accelerating downward at 1.7 m/s2 ?

Step-by-Step Solution:
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Simple Harmonic Motion Simple Harmonic Motion ● Period: time required for one cycle of periodic motion ● Frequency: number of oscillations per unit time ○ f= T ● A spring exerts a restoring force that is proportional to the displacement from equilibrium: ○ F=-kx ● A mass on a spring has a displacement as a function...

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Solved: A 74-kg tree surgeon rides a cherry picker lift to reach the upper branches of a

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