1. The problem states that an object at point A has a potential energy (PE) of 60 J and a total energy (TE) of 80 J. We need to find the kinetic energy (KE) at point A. 2. The formula relating total energy, potential energy, and kinetic energy in a mechanical system is: $$ TE = PE + KE $$ This means the total energy is the sum of potential and kinetic energies. 3. To find kinetic energy, rearrange the formula: $$ KE = TE - PE $$ 4. Substitute the given values: $$ KE = 80 - 60 $$ 5. Simplify the expression: $$ KE = \cancel{80} - \cancel{60} = 20 $$ 6. Therefore, the kinetic energy at point A is 20 J. This means the object has 20 J of energy due to its motion at point A.