The vector sum of two forces A and B is perpendicular to their vector difference. Hence forces A and B are (a) perpendicular to each other. (b) parallel to each other. (c) unequal in magnitude. (d) equal in magnitude.

Answer: (d). (A + B) · (A - B) = A² - B² = 0 So |A| = |B|: answer (d) equal in magnitude.

The vector sum of two forces A and B is perpendicular to their vector… | MHT CET 2025 (26 Apr, Shift 2)

Q12MHT CET 2025 · 26 APR · SHIFT 2Easy

Scalar (Dot) Product

The vector sum of two forces $\vec{A}$ and $\vec{B}$ is perpendicular to their vector difference. Hence forces $\vec{A}$ and $\vec{B}$ are

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Answer: (d)

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