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The normal force (N)
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
The type of friction that must be overcome to start moving an object is called
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
What are the two types of resistance in a mechanical system?
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
If an object is moving at a constant speed, then the sum of the all forces on the object
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
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.
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
The upwards force on an airplane flying through the air is called
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
________ reduces friction in mechanical systems.
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
As the coefficient of friction increases, the force required to move an object
is the upward force that is at a right angle to the sliding surfaces.
lift.
0.4 * 50 lb
static friction.
Lubricants, streamlining
increases.
equals zero.
drag force and friction
Check it!