Physics
Physics, 08.12.2020 23:50, only1123

A package weighing 55 N is lifted to a height of 2.0 m by pulling it up a ramp 4.4 m long. the person pulling the package exerts a force of 6.5 N. mechanical advantage of the ramp?
work input?
work output?
efficiency of machine?

answer
Answers: 2

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A package weighing 55 N is lifted to a height of 2.0 m by pulling it up a ramp 4.4 m long. the perso...

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