Question

energy can flow
a ball is held above the ground. before it is dropped, it has 8 units of potential energy and 0 units of kinetic energy.
what is the total energy?
80 units
8 units
10 units
0 units

Explanation:

Step1: Recall total energy formula

Total energy ($E_{total}$) is the sum of potential energy ($E_p$) and kinetic energy ($E_k$), so $E_{total} = E_p + E_k$.

Step2: Substitute given values

Given $E_p = 8$ units and $E_k = 0$ units. Substitute into the formula: $E_{total} = 8 + 0 = 8$ units.

Answer:

8 units