answersLogoWhite

0


Best Answer

Imagine a small room, maybe 3ft x 3ft, with six fully grown adults packed inside like sardines. Now image you were somehow squeezed into that room. Do you think you would be able to move around freely? What's stopping you from dropping to the floor and doing 10 push-ups?

When a nail is driven into a block of wood it doesn't remove bits of sawdust like a screw does. In fact the wood that should have been removed to make way, is violently compressed and desperately trying to get back into its regular station of life - occupying the space said nail has now so churlishly taken.

This extreme pressure creates the friction needed to ensure the nail is a permanent addition to our block of wood.

The lifelong, unwavering pressure on our nail will never tire, never relent, keeping it firmly in place until elements and old age give way to rotted wood.

Now go hang a picture.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

11y ago

When you drive a nail into wood, it doesn't make a hole in same fashion that ,say, a drill bit does: a nail doesn't remove any material, it shoves it aside. This displaced material has been compressed by the nail and is trying to expand back into its original form, applying pressure against the nail. This is where the friction that holds the nail comes: this is also why a dense wood (ie: oak) has more holding ability than a soft wood (ie: cypress).

very little friction may produce if u scrach your nails like as we do with our hands in winter heat is produced if u think sometime to scrach nail with board or any ruff surface you just get scared or hurt because it doest limited to apply.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How friction keeps nails from falling out of the wall?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about General Science

What is a good analogy of cell wall?

A fence around a building it keeps bad stuff and the other stuff in


What is one situation that friction is useful?

Friction plays a vital role in our daily life. Without friction we are handicap.1. It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice.2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.3. A horse can not pull a cart unless friction furnishes him a secure foothold.


2 ways that friction can be used in a structure?

Friction is important for all sports. Without it it becomes really hard to accelerate For example a 100m sprinter. It would be great for him if there wasnt any air resistance (as long as he can breath). But he needs friction on the floor to push himself forward. However friction is less useful in hockey, skiing, and almost all types of boarding(snowboarding, wakeboarding, kneeboarding,


Friction as a friend and foe?

Friction can be considered as a friend or a foe. Friction as a friend: 1.It helps us to hold things. 2.It helps us to move. It helps us to move over wet floor or a muddy track. 3.It helps us to attach many things on the wall surface. 4.The friction between the wheels and the vehicle allows the vehicle to stop, start or change the direction. Friction as a foe: 1.It wastes a large amount of energy as when 2 objects rubs each other, a large amount of heat energy is released.


Why do you fall backwards when you run into something?

Because every action has an equal and opposite reaction. The action is you running into a wall, and the opposite reaction is you falling down.