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A_Level_Student
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A horizontal force of 20N just prevents a mask of 2kg from sliding down a rough plane inclined at 45 degrees to the horizontal.Find the coefficient of friction.
 2 years ago
 2 years ago
A_Level_Student Group Title
A horizontal force of 20N just prevents a mask of 2kg from sliding down a rough plane inclined at 45 degrees to the horizontal.Find the coefficient of friction.
 2 years ago
 2 years ago

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hosein Group TitleBest ResponseYou've already chosen the best response.0
Hi from below fig we can analyze forces and solve question: dw:1333139120501:dw
 2 years ago

hosein Group TitleBest ResponseYou've already chosen the best response.0
analyze forces respect to this coordinate dw:1333139185052:dw
 2 years ago

A_Level_Student Group TitleBest ResponseYou've already chosen the best response.0
i have a similar diagram but how can we analyse the forces
 2 years ago

hosein Group TitleBest ResponseYou've already chosen the best response.0
so:in direction of normal to incline:\[NFsin \theta =mgcos \theta\]& in direction of down of incline:\[mgsin \thetaFcos \theta\mu _{s}.N=ma=0\]so if you solve 2 equation for mu yields:\[(Fcos \theta+mgsin \theta)/(Fsin \theta+mgcos \theta)=\mu _{s}\]
 2 years ago

salini Group TitleBest ResponseYou've already chosen the best response.0
hey hi! u draw the diagram again with the resolving of vectors can u do that? wat is ur name?
 2 years ago

hosein Group TitleBest ResponseYou've already chosen the best response.0
u oght be analyze forces respect to that coordinate dw:1333221355385:dw
 2 years ago

salini Group TitleBest ResponseYou've already chosen the best response.0
bisho, were u comfortable in resolving those horizontal force and mg down the slope?
 2 years ago

A_Level_Student Group TitleBest ResponseYou've already chosen the best response.0
dw:1333350119161:dw
 2 years ago

salini Group TitleBest ResponseYou've already chosen the best response.0
dw:1333455525796:dw dw:1333455661277:dw where Ff is frictional force sum up all these forces acting on the body i have shown different diagrams to avoid confusion i want the body to be in rest so all those vertical forces (on bothe sides of incline) and horizonatal forces(acting on both sides shud be equal)
 2 years ago
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