Question

A car has a speed of 2 m/s and a mass of 1500 kg. What is the cars kinetic energy?
A. 4500 J
B. 3000 J
C. 1500 J
D. 6000 J

Answer 1

Answer:

B

Explanation:

E = mv² / 2

E = (1500kg)(2 m/s)² / 2

E = 6000 J / 2

E = 3000 J

Answer 2

Answer:

B

Explanation: The answer is B because the defining equation for kinetic energy is E=mv^2 / 2

e = (1500kg)(2 m/s)^2 / 2

e = 6000 J / 2

e = 3000 J = 3000 Joules