What are the two types of resistance in a mechanical system?

The upwards force on an airplane flying through the air is called

What symbol represents the coefficient of friction?

The normal force (N)

The type of friction that must be overcome to start moving an object is called

As the coefficient of friction increases, the force required to move an object

Weight is an example of

If an object is moving at a constant speed, then the sum of the all forces on the object

________ reduces friction in mechanical systems.

How much applied force is needed for a 50 lb. object to slide across a floor that has a coefficient of sliding friction of 0.4.

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