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WINSTONCH [101]
3 years ago
7

Select the correct answer.

Physics
2 answers:
Dahasolnce [82]3 years ago
5 0

Answer:

a is the correct choice

Explanation:

Nina [5.8K]3 years ago
4 0

Answer:

The answer is A

Explanation:

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3 years ago
How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius
mixas84 [53]

The magnitude of static friction is

<em>f</em> = <em>mv</em> ²/<em>r</em>

(i.e. the net force acting on the car parallel to the road points toward the center of the curve)

while the net vertical force must be

∑ <em>F</em> = <em>n</em> - <em>mg</em> = 0

because the car is otherwise in equilibrium. Then

==>   <em>n</em> = <em>mg</em>

==>   <em>f</em> = <em>µn</em> = <em>µmg</em> = <em>mv</em> ²/<em>r</em>

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<em>r</em> = 110 m

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3 years ago
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