(b) F(t)=(e²¹)i + (2e²¹ +5)j + (2e²¹ -20)k for 0≤1≤ In 2

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Find arc lenght of the following vector function

 

The expression given represents a vector function \(\vec{r}(t)\) defined as follows:

\[
\vec{r}(t) = (e^{2t})\vec{i} + (2e^{2t} + 5)\vec{j} + (2e^{2t} - 20)\vec{k}
\]

This vector function is expressed in terms of the unit vectors \(\vec{i}\), \(\vec{j}\), and \(\vec{k}\), which are the standard basis vectors in a three-dimensional Cartesian coordinate system. The expression is valid for \(0 \leq t \leq \ln 2\).

In detail:
- The \(\vec{i}\) component is \(e^{2t}\).
- The \(\vec{j}\) component is \(2e^{2t} + 5\).
- The \(\vec{k}\) component is \(2e^{2t} - 20\).

The function is considered for the interval of \(t\) starting from 0 up to \(\ln 2\), where \(\ln\) denotes the natural logarithm. 

This vector function may represent a path or trajectory in space, where each component function describes the position along the respective axis as a function of time \(t\).
Transcribed Image Text:The expression given represents a vector function \(\vec{r}(t)\) defined as follows: \[ \vec{r}(t) = (e^{2t})\vec{i} + (2e^{2t} + 5)\vec{j} + (2e^{2t} - 20)\vec{k} \] This vector function is expressed in terms of the unit vectors \(\vec{i}\), \(\vec{j}\), and \(\vec{k}\), which are the standard basis vectors in a three-dimensional Cartesian coordinate system. The expression is valid for \(0 \leq t \leq \ln 2\). In detail: - The \(\vec{i}\) component is \(e^{2t}\). - The \(\vec{j}\) component is \(2e^{2t} + 5\). - The \(\vec{k}\) component is \(2e^{2t} - 20\). The function is considered for the interval of \(t\) starting from 0 up to \(\ln 2\), where \(\ln\) denotes the natural logarithm. This vector function may represent a path or trajectory in space, where each component function describes the position along the respective axis as a function of time \(t\).
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