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

#2**+1 **

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