For a 5 kilogram closed system with 25 kJ of mechanical energy (i.e. the sum of kinetic and potential energies), if the elevation of this system is 400 meters, please determine the velocity of this system.
Question 5: For a 5 kilogram closed system with 25 kJ of mechanical energy (i.e. the sum of kinetic and potential energies), if the elevation of this system is 400 meters, please determine the velocity of this system. (The local gravity can be assumed as 9.81 m/s^2 and Emech = mV^2 + mgh)
Question 6: A 4 kilogram object is moving at a speed of 50 m/s. If the mechanical energy (i.e. the sum of kinetic and potential energies) of this object is 15 kJ, please determine the elevation of this object. (The local gravity can be assumed as 9.81 m/s^2)