An apple fell from an apple tree from a height of 5 m. the mass of the apple is 600 g.
| April 10, 2021 | education
An apple fell from an apple tree from a height of 5 m. the mass of the apple is 600 g. Determine what kinetic energy the apple possessed at the moment it touched the surface of the Earth.
To find the speed of a given apple at the moment of touching the Earth, we will use the equality: Ek = En = m * g * h.
Constants and variables: m is the mass of a given apple (m = 600 g = 0.6 kg); g – acceleration due to gravity (g ≈ 10 m / s2); h is the initial height of the apple (h = 5 m).
Calculation: Ek = m * g * h = 0.6 * 10 * 5 = 30 J.
Answer: The kinetic energy of a given apple was 30 J.
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