Suppose that the body in Exercise 15 is projected downward with a velocity of 1 m/sec instead of being dropped. Again determine the velocity of the body after 2 seconds.
Exercise 15
A body of mass 5 kg is dropped from a height of 200 m. Assuming the gravitational effect is constant over the 200 m and air resistance is proportional to the velocity of the falling object with proportionality constant 10 kg/sec, determine the velocity of the object after 2 seconds. (Use 10 m/sec2 for the acceleration of gravity.)
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