To determine which object has the greatest kinetic energy, you would need to know the mass and velocity of each object in question. The kinetic energy (KE) of an object is calculated using the formula:
\[ KE = \frac{1}{2}mv^2 \]
where \( m \) is the mass of the object and \( v \) is its velocity.
If you provide the specific objects and their respective masses and velocities, I can help you calculate which one has the greatest kinetic energy.