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Cristobal1234: Let me give you an educated guess on that.
12.4 m/s is Peak human speed. Attack took about 1 second to go what seems to be 7 meters or something, so likely the higher ends of peak human speed.
Some vague pixel scaling gives the distance here to be about 11 meters, timeframe was about a second, so higher end of peak human speed.
For the attack potency: 5 humans should weigh around 70 kg each. distance the attack throws them should be about 20 meters (raw estimate). Using trajectory calculation one gets that the launch speed should be around 14 m/s then. That gives for KE = 34300 J which is wall level.