Answered: kg car moving at 14 m/s on dry…

kg car moving at 14 m/s on dry pavement, skids to a stop over 106 m. What is the force of friction between the car's tires and the pavement? Calculate answer to one decimal

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter1: A Physics Toolkit

Section: Chapter Questions

Problem 89A

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(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . In Figure 1.19, arrows show the directions of the velocity and the acceleration of a hall moving in a circle. Make a similar sketch showing these directions for a car (a) speeding up from a stop sign and (h) slowing down as it approaches a stop sign.
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . As a car goes around a curve, the driver increases its speed. This means the car has two accelerations. What are the directions of these two accelerations?
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) Scenes in films or television programs sometimes show people jumping off moving trains and having unpleasant encounters with the ground. If someone is on a moving flatbed train car and wishes to jump off, how could the person use the concept of relative speed to make a safer dismount?
Identity action-reaction pairs in the following situations: (a) a man takes a step (b) a snowball hits a girl in the back (c) a baseball player catches a ball (d) a gust of wind strikes a window
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . The graphs in Figure 2.52 show plots of force versus acceleration for several objects. Rank these displays using the identifying numbers according to the mass of the affected object from smallest to largest. If any objects share the same mass, give them the same ranking. For reference, the graphs all have the same scale for their respective F and a axes. Explain your reasons for your rankings.
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) 31. We have studied four different laws authored by Sir Isaac Newton. For each of the following, indicate which law is best for the task described. (a) Calculating the net force on a car as it slows down. (b) Calculating the force exerted on a satellite by Earth. (c) Showing the mathematical relationship between mass and weight (d) Explaining the direction that a rubber stopper takes after the suing that was keeping it moving in a circle overhead is cut. (e) Explaining why a gun recoils when it is fired. (f) Explaining why a wing on an airplane is lifted upward as it moves through the air.
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . What is "Vector addition'' and how is it done?
(Indicates a review question. which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) 10. Discuss the distinction between mass and weight.
Visualize the connections for the descriptions of the laws in the sections and give answers in the blanks. Compare your answers with those at the back of the book. First Law Second Law Third Law also called law of cause for every a. _________ d. _________ g. _________ a measure of inertia effect there is an b. _________ e. _________ h. _________ type of motion units of effect acting on c. _________ f. _________ i. _________
Rank the following three collisions in terms of the extent of damage that the car would experience. Explain your reasons for ranking the collisions as you did. (a) A car going 10 m/s striking an identical car that was stationary on level ground. (b) A car going 10 m/s running into an immovable concrete wall. (c) A head-on collision between identical cars, boom going 10 m/s.
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) List the physical quantities identified in this chapter. From which of the fundamental physical quantities is each derived? Which of them are vectors, and which are scalars?
The price of gasoline at a particular station is 1.5 euros per liter. An American student can use 33 euros to buy gasoline. Knowing that 4 quarts make a gallon and that 1 liter is close to 1 quart, she quickly reasons that she can buy how many gallons of gasoline? (a) less than 1 gallon (b) about 5 gallons (c) about 8 gallons (d) more than 10 gallons