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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
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