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Physics 1710.003
Fall 2006
Examination 2
Name:
Student ID #:
This test consists of 8 multiplechoice questions and 4 problems.
To receive credit for the 4
problems, you must show all of your work on the pages provided.
Don’t hand in any extra
sheets or other paper.
I strongly recommend that you also show your work for the
multiplechoice questions.
Suggested procedure for solving the problems:
1.
Read each problem carefully and make sure you know what is being asked before starting the
problem.
2.
Draw a figure for the problem.
3.
List the parameters given.
4.
Write down the equations to be used.
5.
Solve for the answer algebraically
6.
Substitute numbers into you final equation and circle your answer.
WORK THE EASY PROBLEMS FIRST!!
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View Full Document1.
(7 points) A box sits on the back of a flatbed truck.
If the coefficient of static friction
between the box and the truck bed is
μ
s
= 0.400, what is the shortest distance in which the
truck can stop on level ground without the box sliding if it is initially traveling at
v
= 15.0
m/s?
a) 3.92 m
b) 6.00 m
c) 11.5 m
d) 28.7 m
e)
cannot be determined without knowing the mass of the box
2.
(6 points) A constant force
F
of magnitude 75.0 N acts on an object as it undergoes a
displacement
d
of magnitude 8.00 m along a straight line.
If the force does work
W
= 350 J
during this displacement, the angle
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