How do I calculate energy from mass and velocity?

[TriumphDog1]

how can i calculate energy when all i am given is mass and velocity?

 

[arildno]

Square the velocity, and multiply with half the mass.
That gives you the kinetic energy.

 

[elote]

in other words, $$K.E. = \frac{1}{2} mv^2$$

 

[TriumphDog1]

thanx a lot