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 K 34 = 5,202 interpretation of in this context?
Correct answer: A (parsed from the explanation — this source omits an answer key for this item)
Explanation
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 =9 2 34 =5,202 34 function K, where K^vh 2v . It follows that in the equation K^ h , is 5,202 the value of v, or the speed of the object, in meters per second, and is the kinetic energy, in joules, of the object at that speed. Therefore, the best 34 =5,202 34 interpretation of K^ h in this context is the object traveling at meters 5,202 per second has a kinetic energy of joules. 340 Choice B is incorrect. The object traveling at meters per second has a kinetic 520,200 5,202 energy of joules. Choice C is incorrect. The object traveling at 121,773,618 meters per second has a kinetic energy of joules. Choice D is 23,409 incorrect. The object traveling at meters per second has a kinetic energy 2,465,915,764.5 of joules.
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