Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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**Problem Description:**

A football player runs for a distance \(d_1 = 8.67\) meters in 1.25 seconds, at an angle of \(\theta = 57.3\) degrees to the 50-yard line. Then, the player turns left and runs a distance \(d_2 = 12.52\) meters in 1.51 seconds, in a direction perpendicular to the 50-yard line. The diagram shows these two displacements relative to an x-y coordinate system, where the x-axis is parallel to the 50-yard line, and the y-axis is perpendicular to the 50-yard line.

**Questions:**

1. What is the magnitude of the total displacement, in meters?
2. What angle, in degrees, does the displacement make with the y-axis? (Note that the angle \(\theta\) was given as measured from the x-axis rather than the y-axis.)
3. What is the magnitude of the average velocity, in m/s?
4. What angle, in degrees, does the average velocity make with the y-axis? (Note that the angle \(\theta\) was given as measured from the x-axis rather than the y-axis.)
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Transcribed Image Text:**Problem Description:** A football player runs for a distance \(d_1 = 8.67\) meters in 1.25 seconds, at an angle of \(\theta = 57.3\) degrees to the 50-yard line. Then, the player turns left and runs a distance \(d_2 = 12.52\) meters in 1.51 seconds, in a direction perpendicular to the 50-yard line. The diagram shows these two displacements relative to an x-y coordinate system, where the x-axis is parallel to the 50-yard line, and the y-axis is perpendicular to the 50-yard line. **Questions:** 1. What is the magnitude of the total displacement, in meters? 2. What angle, in degrees, does the displacement make with the y-axis? (Note that the angle \(\theta\) was given as measured from the x-axis rather than the y-axis.) 3. What is the magnitude of the average velocity, in m/s? 4. What angle, in degrees, does the average velocity make with the y-axis? (Note that the angle \(\theta\) was given as measured from the x-axis rather than the y-axis.)
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