An object of mass 100 kg is released from rest from a boat into the water and allowed to sink. While gravity is pulling the 1 object down, a buoyancy force of E times the weight of the object is pushing the object up (weight = mg). If we assume that water resistance exerts a force on the object that is proportional to the velocity of the object, with proportionality constant 20 Nseclm, find the equation of motion of the object. After how many seconds will the velocity of the object be 40 mlsec? Assume that the acceleration due to gravity is 9.81 m / secz. (Z) Find the equation of motion of the object. x(t) = D