23 August 2016 Phys 131 Fall 2016

Question 1

A hockey puck moves in such a way that

a graph of its position vs. time is as illustrated.

0

1

2

3

4

−1

−2

t

x

Which of the following best represents a

motion diagram for the puck?

1.

0

0 sb

1 sb

2 sb

3 sb

2.

0

0b

1b

2b

3b

3.

0

0b

1b

2b

3b

4.

0

0b

1b

2b

3b

5.

0

0b

1b

2b

3b

– Typeset by FoilTEX – 1

23 August 2016 Phys 131 Fall 2016

Question 2

A hockey puck is initially at the indicated

location and slides to the right, striking a

fixed black board at 2 s later. It bounces

back and travels left, eventually striking a

brown board at 8 s after it has struck the

black board.

30m 10m

Puck (initial)

What is the average velocity of the puck from

initial moment until it strikes the black board?

1. −5m/s

2. −1m/s

3. 0m/s

4. 1m/s

5. 5m/s

– Typeset by FoilTEX – 2

23 August 2016 Phys 131 Fall 2016

Question 3

A hockey puck is initially at the indicated

location and slides to the right, striking a

fixed black board at 2 s later. It bounces

back and travels left, eventually striking a

brown board at 8 s after it has struck the

black board.

30m 10m

Puck (initial)

What is the average velocity of the puck

from initial moment until it strikes the brown

board?

1. −5m/s

2. −3m/s

3. 0m/s

4. 3m/s

5. 5m/s

– Typeset by FoilTEX – 3

23 August 2016 Phys 131 Fall 2016

Question 4

Congratulations! You now know how to navigate the course website (Bookmark the

link!). The following is a photograph of a well-known city.

Describe as accurately as you can where this is. Again bookmark the link!

– Typeset by FoilTEX – 4