PSAT Math Multiple-Choice Practice Question 184
Question: 184
Kinetic energy is the energy of motion. The equation 
represents the kinetic energy in joules of an object with a mass of m kilograms traveling at a speed of v meters per second. What is the kinetic energy in joules of an unmanned aircraft that has a mass of 2 × 103 kilograms traveling at a speed of approximately 3 × 103 meters per second?
Correct Answer: C
Explanation:
C
Difficulty: Easy
Category: Passport to Advanced Math/Exponents
Getting to the Answer: Substitute the values given in the question into the formula. Then, simplify using the rules of exponents. Remember, when raising a power to a power, you multiply the exponents:
Choice (C) is correct.
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