A body, whose mass is equal to 2 kg, freely falling from a height of 10 m. Determine the kinetic energy at the moment of landing, neglect the air resistance.
To calculate the kinetic energy upon landing, we will use the formula: Ek = En (energy conservation law) = m * g * h.
Variables and constants: m is the mass of the falling (free) body (m = 2 kg); g – acceleration due to gravity (g ≈ 10 m / s2); h – initial height (h = 10 m).
Calculation: Ek = m * g * h = 2 * 10 * 10 = 200 J.
Answer: Upon landing, the kinetic energy became equal to 200 J.
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