truesarah111
25.01.2020 •
Physics
What is the minimum hose diameter of an ideal vacuum cleaner that could lift a 15 kg dog off the floor?
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Ответ:
You would have to find the friction force of the rubber block which would be found with the equation of Normal force (mass*gravity) times cooeficient of friction which would give 8.82 N for the amount of friction and because you need more force than 8.82 N (assuming gravity is 9.8)