pohameeeeu 29/09/2017 Ec=m•v^2 /22800= 6•v^2 /26v^2 = 2800•26v^2= 5600v^2 = 5600/6v^2 = 933v= √933v= 30,54m/sR= APROXIMADAMENTE 30,54M/SBONS ESTUDOS!
pohameeeeu
Ec=m•v^2 /2
2800= 6•v^2 /2
6v^2 = 2800•2
6v^2= 5600
v^2 = 5600/6
v^2 = 933
v= √933
v= 30,54m/s
R= APROXIMADAMENTE 30,54M/S
BONS ESTUDOS!