Answer:
The bowling ball
Explanation:
The kinetic energy of an object is given by:
[tex]K=\frac{1}{2}mv^2[/tex]
where
m is the mass of the object
v is its speed
In the problem, all the balls have same speed v: so their difference in kinetic energy will depend on their mass only.
We don't know the exact masses of the balls, however we can assume that the bowling ball has the largest mass among them: therefore, the bowling ball will also have the greatest kinetic energy.
