Respuesta :

Space

Answer:

9000 J

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Physics

SI Units

  • Energy is in Joules J = 1 Newton per meter N/m
  • Mass m is in kilograms (kg)
  • Velocity v is in meters per second m/s

Energy

Kinetic Energy Formula: [tex]\displaystyle KE = \frac{1}{2}mv^2[/tex]

  • m is mass
  • v is velocity
  • KE is kinetic energy

Explanation:

Step 1: Define

m = 2000 kg

v = 3 m/s

Step 2: Find KE

  1. Substitute [KEF]:                     [tex]\displaystyle KE = \frac{1}{2}(2000)(3)^2[/tex]
  2. Exponents:                              [tex]\displaystyle KE = \frac{1}{2}(2000)(9)[/tex]
  3. Multiply:                                  [tex]\displaystyle KE = (1000)(9)[/tex]
  4. Multiply:                                  [tex]\displaystyle KE = 9000[/tex]