The scalar projection of vector on vector is

MATHEMATICS · Single correct · A Level · Mathematics · Vectors · Vectors

Problem

The scalar projection of vector a⃗\vec{a} on vector b⃗\vec{b} is (a) ∣a⃗∣sin⁡θ|\vec{a}|\sin\theta (b) a⃗⋅b⃗∣a⃗∣\dfrac{\vec{a}\cdot\vec{b}}{|\vec{a}|} (c) a⃗⋅b⃗∣b⃗∣\dfrac{\vec{a}\cdot\vec{b}}{|\vec{b}|} (d) ∣b⃗∣cos⁡θ|\vec{b}|\cos\theta

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