A body of mass 7 kg is projected vertically upward with an initial velocity 32 meters per second.

The gravitational constant is g = 9.8 m/s^2. The air resistance is equal to k*abs(v) where k is a constant.

Find a formula for the velocity at any time ( in terms of k):

v(t) = ?

I'm not really sure how to go about starting this problem. So any help i can get would be appreciated thanks!

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