What is maxuium speed of wind blown debris in a tornado?

Question

What speed would it take for it to penetrate a concrete wall?(forgive spelling)

Answer 1

To answer your question real fast,

a cow at 120mph +

a street sign moving at 180 mph +

a refrigerator moving at 100mph +

a car, moving at 70 mph +

The speed of the debris would depend on how high off the ground the debris go,  the size, shape and wind resistance of the object.

If it is just rolling allong on the floor then you will know if it is moving 5 mph or 40 mph.

But anything that gets blown into the sky is subject to gravity. Things can be blown around at 60 or more mph but when the object falls then the speed could increase to a maximum speed up to 130 mph. (unless your tornado is moving with wind speeds of 350mph, then EVERYTHING that sits above the earths surface will be torn off and relocated)

Now to penetrate a concrete wall depends on the weight of the object hitting the wall.

(we will use a basic concrete cinder block wall as an example)

If the tornado is strong enough to lift a car into a concrete wall (+/- 150 mph), then the car wouldnt even have to be moving too fast to break down the wall. And even at that speed, I dont think a concrete wall would survive those speeds.

But if youre talking about a house made from concrete, then thats a different story. That would take way too long to answer. Foundation, size, weight, thickness, structural support, aerodynamics, and many more things come into play then. Ill leave that to the engineers to figure out.

Note: A bomb/tornado shelter would work perfect in a very powerful tornado.

Answer 2

AN  F-5 tornado has speeds up to 300 + mph so at that speed any debre will kill someone. ever seen the movie twister yeah if you have seen it  that big twister at the end is an F-5