Posted by physics on Thursday, September 3, 2009 at 9:28pm.
Is the table tilted? then gravity is the other force. Friction force only exists if there is a force trying to move an object.
so there is no static friction when a block is just sitting there and not moving with no applied force?
no, of course not. Dont get into the question if no one is in the forest to hear the tree fall, does it make a sound.
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