A. 3.0J
B. 6.0J
C. 30.0j
D. 60.0J
Correct Answer: Option D
D. 60.0J
Explanation
K.E = P.E = mgh
= 0.5 x 10 x 12 = 60J
![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]")
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