A. 1.00s
B. 2.00s
C. 2.18s
D. 3.00s
Correct Answer: Option B
B. 2.00s
Explanation
T = 2u/g = 2×10/10 = 2s
![A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms‾²]. Calculate the speed of projection](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]. Calculate the speed of projection")
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