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Friction

Vary the value of the coefficient of friction to see how it affects the critical angle, and the value of the weight and slope angle to see how they affect the frictional and reaction forces. Note that weight always acts vertically downwards. Once the relationships are clear just vary the angle to see when the box will start sliding.

Coefficient of friction 0 

Weight 0 N

Angle 0 degrees

Critical angle =    

0 0