Post-UTME Physics 2010 Objective — Question 7
Question 7 of 12 from the Post-UTME Screening (Post-UTME) Physics 2010 Objective paper, with the correct answer and a full explanation.
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Find the resultant of two forces 6N and 5N which are inclined to each other at 30 degrees.
- A. 12.2N
- B. 8.7N
- C. 10.6NCorrect
- D. 9.5N
Explanation
Using the parallelogram law: R = sqrt(6^2+5^2+2x6x5xcos30) = sqrt(36+25+51.96) = sqrt(112.96) = 10.6N.
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