musicaljay5466 musicaljay5466

06-03-2024
Physics

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A man drops a 10kg rock from the top of a 5m ladder. What is its kinetic energy on reaching the ground? What is its speed just before it hits the ground?
a) Kinetic energy: 500 J, Speed: 10 m/s
b) Kinetic energy: 500 J, Speed: 20 m/s
c) Kinetic energy: 1000 J, Speed: 10 m/s
d) Kinetic energy: 1000 J, Speed: 20 m/s

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