Question

Ff=0 V 0=3m/s
g= 10 N/kg
h max=?

Answer 1

Vezi fișierul. Sper că te-am ajutat!

403a3a7b6c3255090ad49e2e819ce683.pdf

Answer 2

$F_f=0 \ N \\ v_0=3 \ m/s \\ g=10 \ N/kg \\ E_p=E_c \\ \boxed{h_{max}-?} \\ \bold{Rezolvare:} \\ \boxed{E_c=\frac{m \cdot v^2}{2}} \ \ \ \ \ \ \ \boxed{E_p=m \cdot g \cdot h} \\ E_c=E_p, \ \ \Rightarrow \frac{\not{m} \cdot v_0^2}{2}=\not{m} \cdot g \cdot h_{max} \\ \frac{v_0 ^2}{2}=g \cdot h_{max}; \ \ \ \ \frac{3 \ m/s}{2}=10 \ N/kg \cdot h_{max} \\ h_{max}=\frac{1,5 \ m/s}{10 \ N/kg}=\frac{1,5 \ m/s}{10 \ m/s^2} \\ \Rightarrow \boxed{h_{max}=0,15 \ m=\bold{15 \ cm}}$