For two objects A and B moving with velocities and respectively

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

For two objects A and B moving with velocities vA\mathbf{v}_A and vB\mathbf{v}_B respectively, which of the following expressions represents the velocity of A with respect to B? (a) vA+vB\mathbf{v}_A+\mathbf{v}_B (b) ∣vA∣−∣vB∣|\mathbf{v}_A|-|\mathbf{v}_B| (c) vA−vB\mathbf{v}_A-\mathbf{v}_B (d) vB−vA\mathbf{v}_B-\mathbf{v}_A

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