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Physics, 07.11.2019 16:31, DroctorWellsfan
Jill is pushing a box across the floor. which represents the upward force perpendicular to the floor?
a. fp
b. ff
c. fn
d. fg
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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Jill is pushing a box across the floor. which represents the upward force perpendicular to the floor...
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