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# HollyA

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A dog runs for 2 seconds without stopping. After 1 second, the dog travels 6 meters. By the end of the next second, the dog has traveled an additional 4 meter. Which best describes the motion of the dog during the two seconds?

a.The dog slows down

b.The dog speeds up

c.The dog moves with a constant speed

d.The dog changes direction

HollyA  May 15, 2017
edited by HollyA  May 16, 2017
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Guest May 15, 2017
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A dog runs for 2 seconds without stopping. After 1 second, the dog travels 6 meters. By the end of the next second, the dog has traveled an additional 4 meter. Which best describes the motion of the dog during the two seconds?

Velocity is always positive (assuming he is runing in a positive direction) but he runs less far in the second second than in the first so he is slowing down.  So the dogs acceleration is in a negative direction.  (It is like he is being pulled backwards)

Melody  May 16, 2017

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