Question 4
The arrow represents
the vector R.
Which diagram does not
represent R as two perpendicular components?
Reference: Past Exam Paper – June 2015 Paper 12 Q4
Solution:
Answer: C.
When facing such types of question, it is best to
tackle it by drawing on the question paper itself.
The vector sum of the two perpendicular components
should provide a resultant equal to the vector R shown.
By completing the diagram (by the parallelogram method, for example), we can observe that only choice C does not provide a resultant similar to the vector R shown. Instead, the resultant in C has a downward direction and thus, cannot be equal to the vector R shown.
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