speed required to dodge

[Shadowbokunohero]

speed required to dodge a grenade explosion at point blank range?.

Example. Grenade about to explode right in front of face

2 panel shows character away from the explosion of the grenade

 

[EliminatorVenom]

Depends on the context, grenade, how he dodged, how much time it took him to dodge and stuff. But reacting to explosions, in general, is Hypersonic (Around Mach 22, if I'm not mistaken)