[answered] Microsoft Word - Assignment 9 PHY1321 Fall 2016_no solution

Microsoft Word - Assignment 9 PHY1321 Fall 2016_no solutions.docx

1- A skier of mass 70.0 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him a distance of 60.0 m up a 30.0? slope (assumed frictionless) at a constant speed of 2.00 m/s? (b) A motor of what power is required to perform this task?

2-?A block is pushed across a rough horizontal surface from point A to point B by a force (magnitude

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