Wednesday
October 1, 2014

Homework Help: PHysics

Posted by Leslie on Thursday, April 28, 2011 at 1:24am.

A dragster maintains a speedometer reading
of 100 km/h and passes through a curve with
a constant radius.


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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