A. 5J
B. 25J
C. 250J
D. 500J
E. 625J
Correct Answer:
Option D – 500J
Explanation
v² = u² + 2gh = 0 + 2 x 10 x 10
v² = 200; K.E = ½mv² = 1/2 x 5 x 200 = 500J
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![A carpenter on top of a roof of 20.0m high dropped a hammer of mass 1.5kg and it fell directly to the ground. the kinetic energy of the hammer just before hitting the ground is? [g = 10 ms−²]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A carpenter on top of a roof of 20.0m high dropped a hammer of mass 1.5kg and it fell directly to the ground. the kinetic energy of the hammer just before hitting the ground is? [g = 10 ms−²]")
