WAEC Physics 2025 Objective — Question 39
Question 39 of 51 from the West African Examinations Council (WAEC) Physics 2025 Objective paper, with the correct answer and a full explanation.
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A plane is inclined at 45° to the horizontal. Calculate the velocity ratio of the plane.
- A. 0.71
- B. 1.00
- C. 1.41Correct
- D. 1.71
Explanation
For an inclined plane, VR = 1/sinθ = 1/sin45° = 1/0.707 = √2 ≈ 1.41.
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