A. 500.0ms‾¹
B. 100.0ms‾¹
C. 70.0ms‾¹
D. 50.0ms‾¹
Correct Answer: Option B
Explanation
V² = U² + 2gs
V² = 0
V² = 2gs
h = 500m
g = 10ms‾²
V² = 2 x 10 x 500
V² = 10,000
V = 100ms‾¹
![A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms-2]. Determine the potential energy of the body at the maximum height of its motion.](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms-2]. Determine the potential energy of the body at the maximum height of its motion.")
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