JAMB Physics 2011 Objective — Question 2
Question 2 of 49 from the Joint Admissions and Matriculation Board (JAMB) Physics 2011 Objective paper, with the correct answer and a full explanation.
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Two balls X and Y weighing 5 g and 50 kg respectively were thrown up vertically at the same time with a velocity of 100 ms⁻¹. How will their positions be one second later?
- A. A. X will be 500m ahead of Y
- B. B. X and Y will both be at the same position, ahead from the point of throwCorrect
- C. C. X and Y will be 500m from each other
- D. D. Y will be 500m ahead of X
Explanation
Since the balls were thrown with the same velocity at the same time, they are expected to be at the same vertical position at any given moment - the mass of a freely-moving projectile does not affect its trajectory under gravity (air resistance neglected).
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