Can someone please explain it to me ASAP??!!! This is exponential model. An object falls freely in a straight line and experiences air resistance proportional to its speed; this means its acceleration is a(t) = - kv(t), where k is a positive constant and v is the object's velocity. The speed of the object decreases from 1200 ft /s to 1100 ft / s over a distance of 1400 ft. Approximate the time required for this deceleration to occur. Hint: Note that a(t) = v'(t) and v(t) = x'(t). ..... Write the velocity of the object as a function of time. v(t) =

' = - kv(t), where k is a positive ecreases from 1200 it! s to 1100 11/ s over a distance of 1400 ft. Approximate the time required ieceteration to occur. Hint: Note that a(t) = v'(t) and v(t) = x'(t). ! the velocity of the object as a function of time