Book edition 10th Edition

Author(s) David Halliday

Pages 1328 pages

ISBN 9781118230718

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Short Answer

The position vector for a proton is initially $\vec{r} = 5.0 \hat{i} - 6.0 \hat{j} + 2.0 \hat{k}$ and then later is role="math" localid="1657003791208" $\vec{r} = - 2.0 \hat{i} - 6.0 \hat{j} + 2.0 \hat{k}$ all in meters. (a) What is the proton’s displacement vector, and (b) to what plane is that vector parallel?

(a) The proton’s displacement vector is $(- 7 \hat{i} + 12 \hat{j}) m$

(b) $\vec{d}$ is parallel to the X-Y plane

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Given data

1) Initial position vector ${\vec{r}}_{i} = 5.0 \hat{i} - 6.0 \hat{j} + 2.0 \hat{k}$

2) Final position vector $\vec{r_{f}} = - 2.0 \hat{i} - 6.0 \hat{j} + 2.0 \hat{k}$

Step 2: Understanding the concept of vector addition and subtraction

Taking the difference between position vectors of proton, we can find the displacement vector. We have to use vector laws of addition for this.

Formula:

$\vec{d} = {\vec{r}}_{f} - {\vec{r}}_{i}$

Step 3: (a) Determining the displacement vector

To determine the displacement $\vec{d}$ , we need to use the equation,

$\vec{d} = {\vec{r}}_{f} - {\vec{r}}_{i} = (- 2.0 \hat{i} + 6.0 \hat{j} + 2.0 \hat{k}) m - (5.0 \hat{i} - 6.0 \hat{j} + 2.0 \hat{k}) m = (- 7.0 \hat{i} + 12 \hat{j}) m$

Therefore, the displacement vector is $(- 7.0 \hat{i} + 12 \hat{j}) m$

Step 4: (b) Determining the direction of the plane

The displacement vector $\vec{d}$ does not have any component along Z-axis. It means that the displacement vector lies in XY plane.Therefore, the displacement vector is parallel to the XY plane.

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Fundamentals Of Physics

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Short Answer

Step by Step Solution

Step 1: Given data

Step 2: Understanding the concept of vector addition and subtraction

Step 3: (a) Determining the displacement vector

Step 4: (b) Determining the direction of the plane

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Fundamentals Of Physics

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Short Answer

The position vector for a proton is initially r→=5.0i^-6.0j^+2.0k^ and then later is role="math" localid="1657003791208" r→=-2.0i^-6.0j^+2.0k^ all in meters. (a) What is the proton’s displacement vector, and (b) to what plane is that vector parallel?

Step by Step Solution

Step 1: Given data

Step 2: Understanding the concept of vector addition and subtraction

Step 3: (a) Determining the displacement vector

Step 4: (b) Determining the direction of the plane

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