Energia potentiala pe care o are corpul in faza initiala , la impactul cu solul , se va fi transformat in energie cinetica.
[tex]\mathtt{m=200g}[/tex]
[tex]\mathtt{\text{Energia se conserva:}}[/tex]
[tex]\mathtt{E_p+E_{c_1}=E_c}[/tex]
[tex]\mathtt{mgh+10J=E_c}[/tex]
[tex]\mathtt{E_c=0,2kg\cdot10\frac{N}{kg}\cdot20m+10J}[/tex]
[tex]\boxed{\mathtt{E_c=50J}}[/tex]