Answer:

General Formulas and Concepts:
Energy
Kinetic Energy Formula:

- KE is kinetic energy (in J)
- m is mass (in kg)
- v is velocity (in m/s)
Step-by-step explanation:
Step 1: Define
[Given] m = 790 kg
[Given] v = 20.7 m/s
Step 2: Solve
- Substitute in variables [Kinetic Energy Formula]:

- [KE] Evaluate exponents:

- [KE] Multiply:

- [KE] Multiply: