Last name initial
Winter 2003
Last Name______________________________
Physics 175
Exam #1
First Name______________________________
ID # ___________________
Points for each question are indicated in parentheses. Show your work for solutions to questions that
require calculations. Explain from where you start to solve the problem and show your math flowing
from it for full credit. Surround your result in a box and don’t forget to include the units for your result.
If you need more space to finish a question, write BPP (Back of the Previous Page) at the end of the
space provided and then complete your work on the back of the previous page. For multiple choice
questions, circle the letter which you believe to be correct (or best). In all problems, take the
gravitational acceleration g = 10 m/s
2
.
Problem 1
(5 points)
A ball is thrown straight up.
What is the difference in the ycomponent of its acceleration at the halfway
point going up and the halfway point going down?
a)
0
b)
g
c)
2g
d)
2g
Problem 2
(10 points)
The position of a particle in a given coordinate system is
r
(t) = (5 – t
2
)
i
+ ( 4 + 3t)
j
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 Spring '08
 kozstin
 Physics, Cartesian Coordinate System, Force, Work, Polar coordinate system

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