WAEC Physics 2018 Objective — Question 8
Question 8 of 50 from the West African Examinations Council (WAEC) Physics 2018 Objective paper, with the correct answer and a full explanation.
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A block is acted upon by two horizontal forces as illustrated in the diagram above. The block accelerated at 1.5ms⁻². Calculate the mass of the block
- A. 6kgCorrect
- B. 9kg
- C. 10kg
- D. 15kg
Explanation
Net force = 10N − 1N = 9N. Mass = F/a = 9/1.5 = 6kg.
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