Question

You're driving north toward the Big I junction between I-25 and I-40. You take the exit...

You're driving north toward the Big I junction between I-25 and I-40. You take
the exit ramp to the west. As you drive around the exit ramp and enter the
westbound freeway, approximately in which direction is the friction force between your tires
and the pavement pointing just as your car starts to point west.

a.

West

b.

South

c.

East

d.

North

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Answer #1

While you are taking turn, friction force is always acting inside the curvature and perpendicular to speed.

Here initially you are driving north and taking turn toward west,

Hence friction force will acts toward south, when your car starts to point west.

Hence option b is correct.

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