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Resolving parallel and perpendicular to an inclined plane

Resolving parallel and perpendicular to an inclined plane including friction.


A block mass m kg on a rough inclined plane at angle θ to the horizontal.

R is the normal reaction.

P is a pull force acting at an angle α to the plane.

If the block is moving or tending to move up the plane the frictional force Fr will act down the plane.



P


R


RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

P

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

Psinα


RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

mg

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

θ

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

θ

α

If the block is in equilibrium (stationary or moving with const velocity):


Parallel to slope : P cosα = Fr + mgsinθ


Perpendicular to slope : R = mgsinθ

If the block is accelerating up the slope with acceleration a then there will be a resultant force parallel to the slope but perpendicular to the slope the forces will still balance.


Parallel to slope “F = ma” : The resultant force F is P cosα – mgsinθ - Fr so

P cosα – mgsinθ - Fr = ma


Perpendicular to slope : R = mgsinθ

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

mg

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

θ

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

mgcosθ

mgsinθ

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

α

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING

Pcosα

RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING


RESOLVING LOSS OF TIF FILE ASSOCIATIONS AFTER MICROSOFT OFFICE
RESOLVING PARALLEL AND PERPENDICULAR TO AN INCLINED PLANE INCLUDING


Tags: inclined plane, rough inclined, perpendicular, including, plane, resolving, inclined, parallel