Tuesday
March 31, 2015

Homework Help: PHYSICS

Posted by Diana on Thursday, April 28, 2011 at 1:40am.

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.
Which force(s) act on the car?
1. I, III and V
2. I, II and III
3. II, III and IV
4. I, II, III and IV
5. I and II

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