They both start from the same location. The directions mentioned in the question are not given, so I have called the angle between their directions A. Whatever the angle we can use the cosine rule to determine the length of the bungee cord after time t.
The question suggests that the cord is slack to start with because they start at the same location. After time t, Adrian moves a distance 8t and Allyson 10t. Using the cosine rule we can write:. At this time, Adrian has moved 44 feet and Allyson 55 feet. From Adrian's starting point it is either 70 or , depending on d. We can then work out t having found x and substituting for d. These represent Allyson's position.
However, the two smallest values for t would be less than 5. We can eliminate 4. Also, why would the unstretched cord length be mentioned if it doesn't figure in the calculations? Start by asking a new question , answering unanswered questions or registering or a free account! Please log in or register to add a comment. Here at TutorEye, we urged students to learn Precalculus scrupulously to understand the concepts of calculus.
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