Answer 2—With a total mass of 500 g, a velocity of 45 m/s represents 506 J of energy:

 e = 0.5 × m × v²

 e = 0.5 × 0.5 kg × (45 m/s)²

 Because this needs to be released in 89 ms, it represents a power level of almost 5700 W.

Contributor: David Tweed