

Since both the total time and the total distance depend on this yard distance, it doesn't factor into the average speed. Notice something here? The yard distance doesn't matter (it cancels). I can put these two estimates together to get the total saving time. Just to be clear, with this notation that means the real yard distance is somewhere between 50 meters and 150 meters. I have no idea where this mansion is, so I'm just going to guess the distance is 100 +/- 50 meters. Let me call this d y (for distance to the yard). I am going to be using this for all my estimates. The "+/-" means "plus or minus," to display the range of uncertainty. In order to accommodate this range of speeds, I am going to use a detonation velocity of 6000 +/- 3000 meters per second. The slowest detonation velocity is from ammonium nitrate with a speed of 2700 m/s and the highest (DDF) is around 10,000 m/s. Luckily, Wikipedia has a table of detonation velocities. The speed of an expanding shockwave is called the detonation velocity.

It's somehow connected to his nemesis, Apocalypse-it's not some conventional chemical-based explosive. So, just how fast is an explosion? Of course this is no ordinary explosion. That's how much time Quicksilver has to get everyone out. But still-the total time has to be the time it takes for the shockwave from the explosion to expand to the outside yard. Also, he can't see the explosion since it's inside the mansion. He can't possibly hear it because the sound would travel with the shockwave. Quicksilver seems to (somehow) notice the explosion right when it starts inside the mansion. Let's start with the easiest estimation-the time. the time he spends just making silly gestures and playing with stuff. The number of trips he makes in and out of the X-Men Mansion.The total time it takes Quicksilver to save all these people.
