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Problem 2. An objet with mass 10 kg is dropped from an airplane. Suppose the dampening from air resistance is y = 4 kg/sec. a. ) Find the velocity as a function of t. b.) Determine the object's terminal velocity. Problem 3. A 2 kg weight is hanging from a spring with spring constant k = 4 kg/sec2. The weight is in a fluid which has a dampening factor of 3 kg/sec. If a driving variable force of 10 sin(t) kg m/sec is used, find the general solution to the differential equation that models this situation