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USING DIFFERENTIAL EQUATIONS To supply an isolated person on an island, they throw a bag of...

USING DIFFERENTIAL EQUATIONS

To supply an isolated person on an island, they throw a bag of food weighing 20 kg from an airplane 1,000 m above the ground. Apart from the influence of gravity, the bag is subjected to an air resistance which is proportional to the speed of the object, with a proportionality constant equal to 20 kg / s. Determine the equation of movement of the bag. How long will the bag take to touch the ground?

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