WAEC Physics 2024 Objective — Question 24

Question 24 of 50 from the West African Examinations Council (WAEC) Physics 2024 Objective paper, with the correct answer and a full explanation.

24. A body of mass, m is projected vertically upward with a velocity, y. At what position will the potential energy be maximum?

A. y^2/g
B. 2y^2/g
C. y^2/2gCorrect
D. y^2/4g

Explanation

The potential energy will be maximum at the maximum height (since P.E.=mgh), and H_max = u^2sin^2(theta)/2g. For vertical projection, this reduces to y^2/2g.

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