mata (jpm2873) – HW #4 – Antoniewicz – (57420)
1
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14
questions.
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001
10.0points
The horizontal surface on which the objects
slide is frictionless.
The acceleration of gravity is 9
.
8 m
/
s
2
.
3 kg
8 kg
5 kg
F
ℓ
F
r
If
F
ℓ
= 23 N and
F
r
= 3 N, what is the
magnitude of the force exerted on the block
with mass 8 kg by the block with mass 5 kg?
Answer in units of N.
002(part1of3)4.0points
Two forces, 446 N at 8
◦
and 401 N at 35
◦
are
applied to a car in an effort to accelerate it.
3718 kg
446 N
8
◦
401 N
35
◦
What is the magnitude of the resultant of
these two forces?
Answer in units of N.
003(part2of3)3.0points
Find the direction of the resultant force (in re
lation to forward, with counterclockwise con
sidered positive).
Answer in degrees from the positive
x
axis,
with counterclockwise positive, within the
limits of

180
◦
to 180
◦
.
Answer in units of
◦
.
004(part3of3)3.0points
If the car has a mass of 3718 kg, what magni
tude of acceleration does it have?
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 Spring '08
 Turner
 Physics, Acceleration, Force, Mass, kg, Mata

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