Answer:
v = 5 [m/s]
Explanation:
Kinetic energy is related to speed, that is, whenever we have kinetic energy we will have a body with speed moving. This can be calculated using the following equation.
[tex]E_{k}=\frac{1}{2}*m*v^{2}\\[/tex]
where:
m = mass = 2 [kg]
v = velocity [m/s]
Ek = kinetic energy = 25 [J]
Now replacing:
[tex]25 = \frac{1}{2}*2*v^{2} \\v=\sqrt{25} \\v = 5 [m/s][/tex]
