Question #305a2

1 Answer
Sarthak
Aug 30, 2017

In the first question, the squirrel is moving away while in the second, the dog is coming towards you.

Explanation:

Let us assume the point where you are standing to be the origin.

Thus, the displacement of the squirrel on the x axis with respect to origin is positive as its x coordinate is increasing overtime.Hence its velocity is taken positive.

But the dog on the other hand is moving towards the origin, in the reverse direction of the squirrel.As its x coordinate is decreasing overtime, its displacement is negative.Therefore, its velocity is taken as negative

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