In the early afternoon, a car is parked on a street that runs down a steep hill, at an angle of 35.0 relative to the horizontal. Just then the coefficient of static friction between the tires and the street surface is 0.725. Later, after nightfall, a sleet storm hits the area, and the coefficient decreases due to both the ice and a chemi- cal change in the road surface because of the temperature decrease. By what percentage must the coefficient decrease if the car is to be in danger of sliding down the street?

In the early afternoon, a car is parked on a street that runs down a steep hill, at an angle of 35.0 relative to the horizontal. Just then the coefficient of static friction between the tires and the street surface is 0.725. Later, after nightfall, a sleet storm hits the area, and the coefficient decreases due to both the ice and a chemi- cal change in the road surface because of the temperature decrease. By what percentage must the coefficient decrease if the car is to be in danger of sliding down the street?

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Chapter5: Newton's Laws Of Motion

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Problem 63PQ: A 75.0-g arrow, fired at a speed of 110 m/s to the left, impacts a tree, which it penetrates to a...

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

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In the early afternoon, a car is parked on a street that runs
down a steep hill, at an angle of 35.0 relative to the horizontal. Just
then the coefficient of static friction between the tires and the
street surface is 0.725. Later, after nightfall, a sleet storm hits the
area, and the coefficient decreases due to both the ice and a chemi- cal change in the road surface because of the temperature decrease.
By what percentage must the coefficient decrease if the car
is to be in danger of sliding down the street?

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