Question

Figure 2 represents an isolated system containing a ball, a track, and air molecules. The ball is released from rest position A and experiences air resistance and friction while moving along the track.

At position B, the system has 7,350 J of kinetic energy and 2,450 J of thermal energy. According to the law of conservation of energy, what is the total potential energy at point A?

Answer 1

7350

Step-by-step explanation:

7,350J

Answer 2

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