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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 13c

The position of an object moving vertically along a line is given by the function s(t)=16t2+128ts\(\left\)(t\(\right\))=-16t^2+128t. Find the average velocity of the object over the following intervals.
[1,2]\(\left\[\lbrack\)1,2\(\right\]\rbrack\)

검증된 단계별 안내
1
Identify the formula for average velocity over an interval [a, b], which is given by the change in position divided by the change in time: \( v_{avg} = \frac{s(b) - s(a)}{b - a} \).
Substitute the given interval [1, 2] into the formula, where \( a = 1 \) and \( b = 2 \).
Calculate the position at \( t = 2 \) using the function \( s(t) = -16t^2 + 128t \). Substitute \( t = 2 \) into the equation to find \( s(2) \).
Calculate the position at \( t = 1 \) using the same function. Substitute \( t = 1 \) into the equation to find \( s(1) \).
Substitute \( s(2) \) and \( s(1) \) into the average velocity formula: \( v_{avg} = \frac{s(2) - s(1)}{2 - 1} \), and simplify to find the average velocity over the interval [1, 2].

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
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주요 개념

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

Position Function

The position function describes the location of an object at any given time. In this case, the function s(t) = -16t² + 128t represents the vertical position of an object in motion, where 't' is time. Understanding this function is crucial for analyzing the object's movement and calculating other related quantities like velocity.
추천 영상:
가이드 코스
5:20
Relations and Functions

Average Velocity

Average velocity is defined as the change in position divided by the change in time over a specific interval. It can be calculated using the formula: Average Velocity = (s(t2) - s(t1)) / (t2 - t1), where s(t) is the position function. This concept is essential for determining how fast the object is moving on average between two points in time.
추천 영상:
가이드 코스
06:37
Average Value of a Function

Interval Notation

Interval notation is a mathematical notation used to represent a range of values. In this question, the interval [1, 2] indicates that we are interested in the object's motion from time t = 1 to t = 2. Understanding interval notation is important for correctly interpreting the time frame over which the average velocity is calculated.
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