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MHT CET 2026 (19 May, Shift 1) · Scalar (Dot) Product

Scalar (Dot) Product question from MHT CET 2026 (19 May, Shift 1)

Q2MHT CET 2026 · 19 MAY · SHIFT 1Easy

Scalar (Dot) Product

In a vector p⃗\vec{p}, 'x' and 'y' components have magnitudes 2 units and 5 units respectively. A vector q⃗\vec{q}, along negative Y axis has magnitude of 3 units. Then p⃗⋅q⃗\vec{p} \cdot \vec{q} is

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Answer: (d)

  1. p⃗=2i^+5j^\vec{p} = 2\hat{i} + 5\hat{j}, q⃗=−3j^\vec{q} = -3\hat{j}.
  2. p⃗⋅q⃗=(2)(0)+(5)(−3)=−15\vec{p} \cdot \vec{q} = (2)(0) + (5)(-3) = -15
  3. So the answer is (d) −15-15.
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