To calculate the value of the mass of the specified body, it is necessary to apply the formula: Ek = mt * V ^ 2/2, from where we express: mt = 2 * Ek / V ^ 2.
Variables: Ek – kinetic energy possessed by the specified body (Ek = 2.5 J); V – speed (V = 10 m / s).
Calculation: mt = 2 * Ek / V ^ 2 = 2 * 2.5 / 10 ^ 2 = 0.05 kg.
Answer: The mass of the indicated body should be equal to 0.05 kg (50 g).
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