Quote:
Originally Posted by serialk11r
The rod transmits any force to the piston at the angle it makes with the piston's travel. The force on the side of the piston is completely determined by rod angle and force that the rod transmits. Increased force on a sliding surface increases frictional force.
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Are you confusing about where the force is applied? We all know that the explosion in the chamber *push* the piston, and then rod to make the crank rotate. Now you are telling me the rod transmits force to the piston to make it move? That is complete opposite to this.
And what does that have anything to do with this:
Increased force on a sliding surface increases frictional force. When one applied force to an object on a sliding surface, if the object is not moving, the applied force is equal to the friction. When you increase force,
provided that the object is not moving, the friction increase. Once you break loose the static friction, the object moves and then it is governed by its dynamic friction, which is less than static friction. The force applied needs to be greater than this dynamic friction to keep object moving or the object will slow down.
This is basic physics. What does this have to do with increasing rod length?