WAEC Physics 2021 Objective — Question 28
Question 28 of 50 from the West African Examinations Council (WAEC) Physics 2021 Objective paper, with the correct answer and a full explanation.
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28. The components of vectors Q and R are (-3.0,5.5) and (9.2,4.4), respectively. Determine the components of Q+R.
- A. (3.7,7.4)
- B. (6.2,9.9)Correct
- C. (2.5,4.8)
- D. (14.7,1.4)
Explanation
Adding component-wise: Q+R = (-3.0+9.2, 5.5+4.4) = (6.2, 9.9).
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