A ball weighing 200 grams was thrown at a speed of 10 m / s. Find potential and kinetic energies
| November 17, 2020 | education
A ball weighing 200 grams was thrown at a speed of 10 m / s. Find potential and kinetic energies at a height of 4 meters from the earth’s surface.
Given:
m = 200g = 0.2kg
Vo = 10 m / s
h = 4m
To find:
Ep-?
Eк-?
Decision:
Ep = mgh
Ep = 0.2 * 10 * 4
Ep = 8J
Eк = (m * Vo ^ 2): 2
Eк = (0.2 * 100): 2
Eк = 10J
Answer: Ep = 8 J, Ec = 10 J
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