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# A test car travels in a straight line along the x- axis. ISBN: 9780321675460 31

## Solution for problem 11E Chapter 2

University Physics | 13th Edition

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Problem 11E

A test car travels in a straight line along the x- axis. The graph in ?Fig. E2.11 shows the car’s position x as a function of time. Find its instantaneous velocity at points A through G.

Step-by-Step Solution:

Answer: Step 1: We can calculate the instantaneous velocity at any point is the slope of the tangent line to the graph at that point. For the Fig. E2.11 Step2 : Portion of the curve on which A and B lies appears to be approximately a line segment. So, we can find the slope of line. Which give the instantaneous velocity at the point Step 3: Calculating the instantaneous velocity of point “A” and “B” From the graph ; Slope of the graph = rise /run = 15/ 2.1= 7.1 m/s ( instantaneous velocity) Step 4: At C the instantaneous velocity there to be 0. As there is no slope at point C. From the graph : Slope of the graph = rise /run = -40/1 = -40 m/s Step 6: calculating the slope at point G , where G is having a curve i.e function , so we can draw a tangent at point G at whatever the slope of that line we can say that will be the slope of that point G Now if we draw a tangent at point G it will be parallel to the timeline. It shows that it's parallel to line C Therefore it doesn't have any slope i.e slope = 0

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Step 3 of 6

##### ISBN: 9780321675460

The answer to “A test car travels in a straight line along the x- axis. The graph in ?Fig. E2.11 shows the car’s position x as a function of time. Find its instantaneous velocity at points A through G.” is broken down into a number of easy to follow steps, and 36 words. University Physics was written by and is associated to the ISBN: 9780321675460. The full step-by-step solution to problem: 11E from chapter: 2 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This full solution covers the following key subjects: Car, its, along, fig, Find. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 11E from 2 chapter was answered, more than 3908 students have viewed the full step-by-step answer.

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A test car travels in a straight line along the x- axis.