Asked by Anonymous
A brick of mass 2kg just begins to slide down an inclined plane at an angle of 45 degree with horizontal.what will be the force of friction
Answers
Answered by
MathMate
On an inclined plane, the forces acting on an object of mass can be resolved along the incline (+ up) as follows:
Gravity force+Friction force
=-mgsin(θ)+Ff
The above sum equals zero if the object stays in equilibrium.
Therefore
Ff=mg sin(&theta)
The above can be derived by drawing a free-body diagram, with which you should be familiar.
Gravity force+Friction force
=-mgsin(θ)+Ff
The above sum equals zero if the object stays in equilibrium.
Therefore
Ff=mg sin(&theta)
The above can be derived by drawing a free-body diagram, with which you should be familiar.
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