is rollerblading down a Iona straight path. At time zero, there is a mailbox abo

Question

is rollerblading down a Iona straight path. At time zero, there is a mailbox about 1 m in front of him. i me 5 - second time period that follows, John's velocity is given by the right - hand graph in the figure below. Taking the mailbox to mark the zero location, with positions beyond the mailbox as positive, plot his position versus time in the left - hand graph below. Assuming that all the numbers given above are exact, what is John's position at a time of 4.43 seconds? Enter your answer to at least three significant digits.

Explanation / Answer

Use the position-time plot to find his position at t =4.43 seconds.

AT 4.5 seconds, He is at 2 m, therefore, at 4.4 seconds, he is between 1.8 and 1.95 metres.

We can say, at 4.43 seconds, he is at 1.875 metres (by the avreage of the two positions)

OR you can find the exact position by moving your cursor over the time 4.43 seconds and getting the exact value of position, which cannot be done in am image file.

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