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nail
The force of the hammer is much greater than the force of the nail. Gravity pulls down the hammer, hits the nail, and the nail forces up, but the force of gravity wins over the force pulling on the nail.
An 8 penny nail (abbreviated as 8d) is 2.5 inches in length. A 10 penny nail (10d) is 3 inches in length.
A 16d (16 penny) nail is larger. The larger the "penny" the larger the nail. But the lengths can vary, but generally an 8d is 2.5" and an 16d is 3 - 3.5".
nail, penny, your fingernail, or other rocks
a penny
50g;s
Normally. 16d box nail. Box means it has a head. Could be 16 Common which has a thicker shaft than a box nail.
Coke will not melt a penny or a nail; that process would involve heat. Instead, the acid from the soda may oxidize some of the metal atoms in the penny and the nail, causing them to become ions and soluble. The some of the metal will dissolve, causing the penny or nail to become pitted and tarnished. However, these objects will not melt.
coper
nail forcing the hammer
becasue the force of the hammer is being doubled, the nail will be droven in twice as far