Martin walked away from his school at a constant velocity for the first 30 seconds. He realized that he had to pick up a book fr
om his friend's house which he had already passed. He turned around and walked to his friend's house at a constant velocity for 10 seconds. He stopped at his friend's house for 40 seconds and then walked away from school again at a constant velocity for the next 20 seconds. Which of the following graphs best represents Martin's motion?
2 answers:
Answer: The below graph shows Martin's motion.
Step-by-step explanation:
let x represents the time(in seconds) and y represents the displacement in x seconds.
According to the question,
At first he walked away from the school for 30 second .
Thus, we will get a line having positive slope.
After that, he turned around and walked to his friend for 20 second.
Thus, we will get a line having negative slope.
Now he wait 40 second in his friend's house.
Thus, after that we get a line that is parallel to x-axis.
Now, He again goes towards his school for 20 seconds,
Thus, we get a line having positive slope.
Therefore, Below graph shows his motion,
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