A body weighing 2.5 kg falls from a height of 12 m. What is the potential energy of a body at a height of 12 m? 8 m?
| December 8, 2020 | education
A body weighing 2.5 kg falls from a height of 12 m. What is the potential energy of a body at a height of 12 m? 8 m? Determine the speed of the body when it falls to the ground.
We use the formula from the school physics course:
Formula Epot. = Mgh
E1 = 2.5 * 10 * 12 = 300 J
E2 = 2.5 * 10 * 8 = 200 J
V = scrt (2 * g * h) = scrt (2 * 10 * 12) = 15.5 m / s
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