In the kinetostatics of a crank-slider mechanism, the force exerted by link \(i\) on link \(j\) is denoted \(F_{ij}\). Newton's third law requires that:

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Mechanical Engineering QUESTION #2486

Question 1

\(F_{ij} = F_{ji}\)
\(\mathbf{F}_{ij} = -\mathbf{F}_{ji}\) (equal magnitude, opposite direction)✔️
\(|F_{ij}| = |F_{ji}|\) only when the links have equal mass
\(F_{ij} + F_{ji} = m\mathbf{a}\)

Correct Answer Explanation

By Newton's third law, the reaction forces between two links are equal in magnitude and opposite in direction: \(\mathbf{F}_{ij}=-\mathbf{F}_{ji}\).

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