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PHYS 250, Physics I - Exam 2 Review questions and answers.
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PHYS 250, Physics I - Exam 2 Review questions and answers.
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PHYS 250,Physics I - Exam
2 Review
questions and
answers
D - answer An object is moving with constant
non-zero velocity. Which of the following
statements about it must be true?
A) A constant force is being applied to it in
the direction of motion.
B) A constant force is being applied to it in
the direction opposite of motion.
,C) A constant force is being applied to it
perpendicular to the direction of motion.
D) The net force on the object is zero.
E) Its acceleration is in the same direction as
it velocity.
D - answer A push of magnitude P acts on a
box of weight W as shown in the figure. The
push is directed at an angle θ below the
horizontal, and the box remains a rest. The
box rests on a horizontal surface that has
some friction with the box. The friction force
on the box due to the floor is equal to
A) W.
B) W + P.
, C) W + P cos θ.
D) W + P sin θ.
E) W - P sin θ.
https://ufonline.findlay.edu/bbcswebdav/pid-
1990955-dt-content-rid-5983105_2/courses/
PHYS250_01_SP2018/
PHYS250_01_SP2018_ImportedContent_20171
215094843/
PHYS250_01_FA2017_ImportedContent_20170
810104912/force_on_box1%281%29.PNG
D - answer The motions of a car and a truck
along a straight road are represented by the
velocity-time graphs in the figure. The two
vehicles are initially alongside each other at
time t = 0. At time T, what is true of the
distances traveled by the vehicles since time
t = 0?
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