Exam-style question
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If a vector has a magnitude of 20 N and is directed at an angle of 45° to the horizontal, what are its vertical and horizontal components?.
- A.14.14 N each
- B.10 N each
- C.20 N vertical, 0 N horizontal
- D.0 N vertical, 20 N horizontal
Model answer
What a good answer should say
- 14.14 N each.
- the correct option
Explanation
Why this works
The correct answer is 14.14 N each. This supports Resolve vectors into perpendicular components.
in Scalars and vectors because it uses the required mechanics relationship directly. The other options are less suitable because they confuse a different force, motion, energy, momentum, or materials concept.
Common mistake
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