Forces (HSC SSCE Physics): Flashcards

📚Flashcards
Investigating the Motion of Objects on Inclined Planes
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Three forces on an inclined plane

Gravitational, normal, friction

Direction of gravitational force on incline

Vertically downward

Direction of normal force on incline

Perpendicular to the surface

Direction of friction when object stationary on slope

Parallel to surface, down the slope

Parallel component of gravity on incline

mgsinθmg\sin\theta

Perpendicular component of gravity on incline

mgcosθmg\cos\theta

Mnemonic for parallel component of gravity

Sine for Slide

Normal force magnitude on incline

mgcosθmg\cos\theta

Static friction force in equilibrium on incline

mgsinθmg\sin\theta

Critical angle on inclined plane

Angle at which object just begins to slide

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