Can't use KE out of it because the volleyball isn't heavy enough to qualify. You now need to be as heavy as Robert Wadlow (200 kg, equal to that of a lion's worth of mass) for KE that high to qualify unless you're involved in a tackle-like maneuver or you achieve ablation) as per
this CRT which got accepted but still didn't get applied, but escape velocity is 11 km/s. It being a gag feat means ****-all to it being an indexing feat. We use gag feats all the time if they're shown in a sensible manner, unless you wanna call Superman casually blowing a sun away or Wonder Woman lasso'ing a sun as unusable.
Volleyballs are
260-280 grams on average. Average mean of this is 270 g or 0.27 kg.
Earth's escape velocity is
11.186 km/s.
0.5 * 0.27 * 11186^2= 16,892,090.46 J or 0.00403730651 tons of TNT (Wall level+)