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Reemplazo de datos:
m= 45g --> a kg= 0.045kg
v= 61m/s
Ek= 1/2 (0.045)*(61)²
Ek= 83.7≈84J
1 joule son 0,239 Calorías
84 joules serán X calorias
X= 20.1 Cal