Question

1. You go for a walk, and travel 1.5 km over the course of 0.50 hours. What was your average speed?

2.Your dog walks a little more slowly than you. Her position is given by the equation x = 0.5 t. (As in our textbook, we will not explicitly write the units on constants within an equation; technically the units on 0.5 are m/s.) What is your dog's average velocity from t = 2 to t = 4 s?

3.In 2009, Usain Bolt of Jamaica set a world record of 9.58 seconds for running the 100-meter dash. If he had continued running an extra 5.00 seconds at the same speed, how far would he have traveled in total?

4.Average acceleration is defined as:

5.A motion diagram of a ball rolling to the right (positive direction) across a table shows successive images that get closer together. This indicates that the acceleration is:

negative

positive

Cannot tell from information given.

zero

Answer 1

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