Chapter 3: Q2CQ (page 119)
Give a specific example of a vector, stating its magnitude, units, and direction.
Short Answer
Force is a vector quantity with a magnitude of 50 N and directed along the positive x-direction.
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Chapter 3: Q2CQ (page 119)
Give a specific example of a vector, stating its magnitude, units, and direction.
Force is a vector quantity with a magnitude of 50 N and directed along the positive x-direction.
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The hat of a jogger running at constant velocity falls off the back of his head. Draw a sketch showing the path of the hat in the jogger’s frame of reference. Draw its path as viewed by a stationary observer.
A farmer wants to fence off his four-sided plot of flat land. He measures the first three sides, shown as,, andin Figure 3.62, and then correctly calculates the length and orientation of the fourth side D. What is his result?

A rugby player passes the ball\(7.00{\rm{ m}}\)across the field, where it is caught at the same height as it left his hand.
(a) At what angle was the ball thrown if its initial speed was\(12.0{\rm{ m}}/{\rm{s}}\), assuming that the smaller of the two possible angles was used?
(b) What other angle gives the same range, and why would it not be used?
(c) How long did this pass take?
Find the following for path D in Figure
(a) the total distance traveled and
(b) the magnitude and direction of the displacement from start to finish.
In this part of the problem, explicitly show how you follow the steps of the analytical method of vector addition.

The various lines represent paths taken by different people walking in a city. All blocks are \(120{\rm{ m}}\) on a side.
A football player punts the ball at a angle. Without an effect from the wind, the ball would travel horizontally. (a) What is the initial speed of the ball? (b) When the ball is near its maximum height it experiences a brief gust of wind that reduces its horizontal velocity by . What distance does the ball travel horizontally?
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