When you throw a pebble across a lake or a loch do you ever stop to think why it skims the surface of the water or that it has anything to do with physics? Well depending on inertia the force according to Sir Isacc Newton if there is no opposing force the pebble will skim in a straight line.The other reasons are the angle, how smooth it is to skim and keep going in a straight line.Gary F Evans...

Gary F Evans...

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