Which force(s) act on the car?

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rimmy=]

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You are driving a car down a straight road at
a constant 48 miles per hour.
Consider the following forces:
I) air drag pushing back on the car;
II) gravity pulling down on the car;
III) the ground pushing up on the car;
IV) friction pushing the wheels (and the car)
forward; and
V) friction pushing the wheels (and the car)
back.
Consider the following forces:
I) air drag pushing back on the car;
II) gravity pulling down on the car;
III) the ground pushing up on the car;
IV) friction pushing the wheels (and the car)
forward; and
V) friction pushing the wheels (and the car)
back.

a) Which force(s) act on the car?
b) Is there a net or unbalanced force acting on
the car?
c)After a while, the car started to go around a
long bend, still maintaining its constant speed
of 55 miles per hour.
Is there a net (unbalanced) force acting on
the car?
b) Is there a net or unbalanced force acting on
the car?
c)After a while, the car started to go around a
long bend, still maintaining its constant speed
of 55 miles per hour.
Is there a net (unbalanced) force acting on
the car?
 
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