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Ch. 2 - Limits
Briggs - Calculus: Early Transcendentals 3rd Edition
Briggs3rd EditionCalculus: Early TranscendentalsISBN: 9780136847243당신이 사용하는 게 아니라요?교과서 변경
2장, 문제 2.7

The following table gives the position s(t)s\(\left\)(t\(\right\)) of an object moving along a line at time tt. Determine the average velocities over the time intervals [1,1.01]\(\left\[\lbrack\)1,1.01\(\right\]\rbrack\), [1,1.001]\(\left\[\lbrack\)1,1.001\(\right\]\rbrack\), and [1,1.0001]\(\left\)\(\lbrack\)1,1.0001^{}\(\right\).]. Then make a conjecture about the value of the instantaneous velocity at t=1t=1. <IMAGE>

검증된 단계별 안내
1
Identify the formula for average velocity over a time interval [a, b], which is given by the change in position divided by the change in time: \( v_{avg} = \frac{s(b) - s(a)}{b - a} \).
For the interval [1, 1.01], calculate the average velocity using the positions at t = 1 and t = 1.01. Substitute these values into the average velocity formula.
For the interval [1, 1.001], calculate the average velocity using the positions at t = 1 and t = 1.001. Again, substitute these values into the average velocity formula.
For the interval [1, 1.0001], calculate the average velocity using the positions at t = 1 and t = 1.0001. Substitute these values into the average velocity formula.
Observe the trend in the average velocities as the time interval decreases. Use this trend to make a conjecture about the instantaneous velocity at t = 1, which is the limit of the average velocity as the interval approaches zero.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
7m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Average Velocity

Average velocity is defined as the change in position divided by the change in time over a specific interval. Mathematically, it is expressed as (s(t2) - s(t1)) / (t2 - t1), where s(t) represents the position function. This concept is crucial for understanding how an object's position changes over time and is foundational for calculating instantaneous velocity.
추천 영상:
가이드 코스
06:37
Average Value of a Function

Instantaneous Velocity

Instantaneous velocity refers to the velocity of an object at a specific moment in time, typically calculated as the limit of the average velocity as the time interval approaches zero. It is represented mathematically as the derivative of the position function, s'(t). Understanding this concept is essential for making conjectures about an object's motion at a precise time.
추천 영상:
가이드 코스
06:29
Derivatives Applied To Velocity

Limits

Limits are a fundamental concept in calculus that describe the behavior of a function as its input approaches a certain value. They are essential for defining derivatives and integrals, which are key to understanding instantaneous rates of change and areas under curves. In the context of this question, limits help in determining the instantaneous velocity by analyzing the average velocity over increasingly smaller time intervals.
추천 영상:
05:50
One-Sided Limits
관련 실천
교과서 질문

A sequence is an infinite, ordered list of numbers that is often defined by a function. For example, the sequence {2,4,6,8,…} is specified by the function f(n) = 2n, where n=1,2,3,….The limit of such a sequence is lim n→∞ f(n), provided the limit exists. All the limit laws for limits at infinity may be applied to limits of sequences. Find the limit of the following sequences or state that the limit does not exist. 


{2,3/4,4/9,5/16,…}, which is defined by f(n) = (n+1) / n^2, for n=1,2,3,…

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교과서 질문

Use a graph of f to estimate limx→af(x){\(\displaystyle\)\(\lim\)_{x\(\to\) a}}f\(\left\)(x\(\right\)) or to show that the limit does not exist. Evaluate f(x) near x=ax=a to support your conjecture.

f(x)=1−cos(2x−2)(x−1)2;a=1f\(\left\)(x\(\right\))=\(\frac{1-\cos\left(2x-2\right)}{\left(x-1\right)^2}\);a=1

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교과서 질문

Consider the position function s(t)=−16t^2+128t (Exercise 13). Complete the following table with the appropriate average velocities. Then make a conjecture about the value of the instantaneous velocity at t=1. <IMAGE>

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교과서 질문

Determine limx→∞f(x)\(\lim\)_{x\(\rightarrow\)\(\infty\)}f\(\left\)(x\(\right\)) and limx→−∞f(x)\(\lim\)_{x\(\rightarrow\)-\(\infty\)}f\(\left\)(x\(\right\)) for the following functions. Then give the horizontal asymptotes of ff (if any).


f(x)=40x5+x216x4−2xf\(\left\)(x\(\right\))=\(\frac{40x^5+x^2}{16x^4-2x}\)

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교과서 질문

Use analytical methods and/or a graphing utility to identify the vertical asymptotes (if any) of the following functions.

h(x)=e^x(x+1)^3

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교과서 질문

Evaluate each limit and justify your answer. 

lim x→1 (x+5x / x+2)^4

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