Skip to main content
Ch. 1 - Equations and Inequalities
Lial - College Algebra 13th Edition
Lial13th EditionCollege AlgebraISBN: 9780136881063당신이 사용하는 게 아니라요?교과서 변경
2장, 문제 44

Solve each formula for the specified variable. Assume that the denominator is not 0 if variables appear in the denominator. F = GMm/r², for m (force of gravity)

검증된 단계별 안내
1
Start with the given formula for the force of gravity: \(F = \frac{GMm}{r^2}\).
Our goal is to solve for the variable \(m\). To isolate \(m\), first multiply both sides of the equation by \(r^2\) to eliminate the denominator: \(F \times r^2 = GMm\).
Next, to solve for \(m\), divide both sides of the equation by \(G M\) (assuming \(G\) and \(M\) are not zero): \(\frac{F r^2}{G M} = m\).
Rewrite the equation to clearly express \(m\) in terms of the other variables: \(m = \frac{F r^2}{G M}\).
This is the formula for \(m\) in terms of \(F\), \(G\), \(M\), and \(r\).

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m
도움이 되었나요?

주요 개념

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

Algebraic Manipulation

Algebraic manipulation involves rearranging equations to isolate a specific variable. This includes using inverse operations such as multiplication, division, addition, and subtraction to solve for the desired variable while maintaining equation balance.
추천 영상:
가이드 코스
05:09
Introduction to Algebraic Expressions

Solving for a Variable in a Formula

Solving for a variable means rewriting the formula so that the variable appears alone on one side of the equation. This often requires isolating the variable by performing operations on both sides, especially when the variable is in the numerator or denominator.
추천 영상:
06:36
Solving Quadratic Equations Using The Quadratic Formula

Handling Variables in Denominators

When variables appear in denominators, it is important to multiply both sides by the denominator to eliminate fractions. This step simplifies the equation and avoids division by zero, which is undefined, ensuring the solution is valid.
추천 영상:
가이드 코스
02:58
Rationalizing Denominators