All Textbook Topics - Forces introduction - Force Diagrams - Force arrows must touch the object they are acting on

Force arrows must touch the object they are acting on

When force arrows are drawn in diagrams, they must touch the objects that they are acting on. Here are some examples:

The arrow touching an object is an often overlooked element of drawing forces in diagrams, but is an essential one.

Two common examples of misconceptions are:

  • force arrows not quite touching an object
  • force arrows being drawn beside an object
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The length of a force arrow represents the magnitude of the force

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