Question

a car is moving at 12 m/s and has a mass of 600 kg. what is the kinetic energy of the car? (formula: ke = \frac{1}{2}mv^{2})
36,300 j
43,200 j
72,600 j
86,400 j

Explanation:

Step1: Identify values

$m = 600$ kg, $v=12$ m/s

Step2: Substitute into formula

$KE=\frac{1}{2}\times600\times12^{2}$
$KE = 300\times144$
$KE=43200$ J

Answer:

43,200 J