The kinetic energy, in joules, of an object with mass 9 kilograms traveling at a speed of v meters per

Question

The kinetic energy, in joules, of an object with mass 9 kilograms traveling at a speed of v meters per second is given by the function K , where K v = 9 2 v 2 . Which of the following is the best interpretation of K 34 = 5,202 in this context?

Accepted Answer

Choice A is correct. It's given that the kinetic energy, in joules, of an object with a mass of 9 kilograms traveling at a speed of v meters per second is given by the function K , where K v = 9 2 v 2 . It follows that in the equation K 34 = 5,202 , 34 is the value of v , or the speed of the object, in meters per second, and 5,202 is the kinetic energy, in joules, of the object at that speed. Therefore, the best interpretation of K 34 = 5,202 in this context is the object traveling at 34 meters per second has a kinetic energy of 5,202 joules. Choice B is incorrect. The object traveling at 340 meters per second has a kinetic energy of 520,200 joules. Choice C is incorrect. The object traveling at 5,202 meters per second has a kinetic energy of 121,773,618 joules. Choice D is incorrect. The object traveling at 23,409 meters per second has a kinetic energy of 2,465,915,764.5 joules.

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