Interpret the position graph given in the figure by writing a very short \"story

Question

Interpret the position graph given in the figure by writing a very short "story" of what is happening. (Figure 1) Select the correct "story". I left my friend's house 10 mi east of town and rode my bike east at 4 mph for 5 more 0 miles; this took 10 minutes. I then rested and ate a sandwich for 20 minutes and then rode all the way back to town at 4 mph. I left my friend's house 5 mi east of town and rode my bike east at 15 mph for 5 more miles; this took 20 minutes. I then rested and ate a sandwich for 20 minutes and then rode all the way back to town at 15 mph. I left my friend's house 5 mi east of town and rode my bike east at 4 mph for 5 more miles; this took 10 minutes. I then rested and ate a sandwich for 20 minutes and then rode all the way back to town at 4 mph. I left my friend's house 10 mi east of town and rode my bike east at 15 mph for 5 more miles; this took 20 minutes. I then rested and ate a sandwich for 20 minutes and then rode all the way back to town at 15 mph.

Explanation / Answer

during t = 0 to t = 20 min

position changes from x = 5 mi to x = 10 mi

velocity during this motion is v = 15 mph

second slope

during t = 40 to t = 80 min

position changes from x = 10 mi to x = 0 mi

velocity during this motion is v = -15 mph

option B is the correct answer

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