Can you describe the difference between the coefficient static friction and kinetic friction by using examples?

1 Answer
Apr 15, 2016

Answer:

In essence, the coefficient of static friction is typically larger than the coefficient of kinetic (or dynamic) friction.

Explanation:

In essence, the coefficient of static friction is typically larger than the coefficient of kinetic (or dynamic) friction.

You will probably have experienced this if you try and push a sledge (sled) on snow. The initial resistance to get it going is often more than once it is moving. Unsurprisingly the coefficient of static friction between waxed wood and dry snow is higher (0.14) than the coefficient of kinetic friction (0.004) (data source: https://physics.ucf.edu/)

A different analogy is trying to get my teenage son out of bed in the morning. It is very hard to get him moving, but it is slightly easier to keep him moving once he is out of bed!