An object initially at rest and on the floor, is acted upon by an upward force, F. The force applies a work of 2 kJ to the object, and causes the object to accelerate upward. The process is adiabatic and the change in the internal energy is negligible. Thus, if the object's mass is equal to 1.4 kg, and acceleration due to gravity is g = 9.81 m/s2 Solve completely: A. Calculate the velocity of the object at the moment its elevation reaches 2m, in m/s. B. At what height will the object described in the problem given above start to go down? Provide 4 decimal places when rounding off.

An object initially at rest and on the floor, is acted upon by an upward force, F. The force applies a work of 2 kJ to the object, and causes the object to accelerate upward. The process is adiabatic and the change in the internal energy is negligible. Thus, if the object's mass is equal to 1.4 kg, and acceleration due to gravity is g = 9.81 m/s2 Solve completely: A. Calculate the velocity of the object at the moment its elevation reaches 2m, in m/s. B. At what height will the object described in the problem given above start to go down? Provide 4 decimal places when rounding off.