A stone of mass 2.0kg is thrown vertically upward with a velocity of 20.0 ms‾¹, calculate the initial kinetic energy of the stone.

by | May 20 | Physics WAEC | 0 comments

A. 200J
B. 400J
C. 800J
D. 1600J

Correct Answer: Option B

B. 400J

Explanation

K.E = ½Mv²=12×2×20² = 400J

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