Post-UTME Chemistry 2013 Objective — Question 17
Question 17 of 22 from the Post-UTME Screening (Post-UTME) Chemistry 2013 Objective paper, with the correct answer and a full explanation.
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A block weighing 15N rests on a flat surface and a horizontal force of 3N is exerted on it. Determine the frictional force on the block.
- A. 0.3N
- B. 0.5N
- C. 3.0NCorrect
- D. 5.0N
Explanation
If the block remains stationary, static friction balances the applied force exactly: friction = 3.0N. (No printed answer key for this session; answer worked out independently.)
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