physics
posted by Sam .
Gradually increase the angle of the incline, but keep the angle low enough that the block does not slide. Select all the phrases below that would make the following statement true: For this situation, as the angle is increased
the maximum possible value of the force of static friction increases.
the force of static friction increases.
the maximum possible value of the force of static friction decreases.
the force of static friction decreases.
the force of static friction stays the same.
the maximum possible value of the force of static friction stays the same.
(b) Now change the mass of the block. Select all the phrases below that would make the following statement true: As the mass is increased
the force of friction decreases.
the force of friction increases.
the maximum possible value of the force of friction increases.
the force of friction stays the same.
the maximum possible value of the force of friction decreases.
the maximum possible value of the force of friction stays the same.
the minimum angle at which the block will slide decreases.
the minimum angle at which the block will slide increases.

a. The force of static friction decreases.
b. The force of friction increases.
The max. possible value of the force of friction increases.
The max. angle at which block will slide decreases. 
Force of friction decreases
The minimum angle at which the block will slide decreases
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