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College Physics (Urone)
Found in: Page 186
College Physics (Urone)

College Physics (Urone)

Book edition 1st Edition
Author(s) Paul Peter Urone
Pages 1272 pages
ISBN 9781938168000

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Short Answer

As cars travel, oil and gasoline leaks onto the road surface. If a light rain falls, what does this do to the control of the car? Does a heavy rain make any difference?

A vehicle can lose control.

Heavy rain does not affect the movement of cars as much.

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Step by Step Solution

TABLE OF CONTENTS :
TABLE OF CONTENTS

Definition of Gasoline

Gasoline or petrol is a clear, flammable liquid derived from petroleum and is used primarily as a fuel in most spark-ignition internal combustion engines (also known as gasoline engines).

Determining status of car and effect of heavy rain

Car motion is caused by the friction force. Static friction works when there is no slipping between the point of contact and road.

When the breaks are applied the nature of friction force converts from static friction to kinetic friction.

In the absence of friction force motion of car will not possible because the car moves due to the force which road applies on the car which is a result of friction force acting between the surfaces.

Because oil is less dense than water, it rises to the top and settles on the road when a light rain falls. This produces a potentially dangerous condition because the friction between the surfaces is considerably reduced. As a result, a vehicle can lose control.

The oil is distributed in a strong rain, which keeps the friction force low. Therefore, they do not affect the movement of cars as much.

Most popular questions for Physics Textbooks

When you push a piece of chalk across a chalkboard, it sometimes screeches because it rapidly alternates between slipping and sticking to the board. Describe this process in more detail, in particular explaining how it is related to the fact that kinetic friction is less than static friction. (The same slip-grab process occurs when tires screech on pavement.)

The glue on a piece of tape can exert forces. Can these forces be a type of simple friction? Explain, considering especially that tape can stick to vertical walls and even to ceilings.

Why can a squirrel jump from a tree branch to the ground and run away undamaged, while a human could break a bone in such a fall?

An old carpenter’s trick to keep nails from bending when they are pounded into hard materials is to grip the center of the nail firmly with pliers. Why does this help?

Show that the acceleration of any object down an incline where friction behaves simply (that is, where fK=μKN ) is a=g {sin(θ)-μKcos(θ)} . Note that the acceleration is independent of mass and reduces to the expression found in the previous problem when friction becomes negligibly small (μK=0 ).

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