The total energy of the object at the point B is 9800 J. Option A
What is the law of conservation of energy?
The total energy of an isolated system stays constant over time, according to the law of conservation of energy, a fundamental tenet of physics. Put differently, energy can only be transferred or transformed from one form to another; it cannot be created or destroyed.
Kinetic energy, or the energy of motion, potential energy, or the energy resulting from a position or state, thermal energy, or heat, and other forms of energy are among them.
We know that the total energy is the same hence we have that;
7,350 J + 2,450 J
= 9800 J