Forces
I want to find the friction force on a boulder (weighing 10 000 kg) on a mountain shaped as a right angled triangle, with height 300 m and length 900 m.
I want to find the friction force on a boulder (weighing 10 000 kg) on a mountain shaped as a right angled triangle, with height 300 m and length 900 m.
Original post by Miaaa_Morrr
I want to find the friction force on a boulder (weighing 10 000 kg) on a mountain shaped as a right angled triangle, with height 300 m and length 900 m.
Where is the right angle?
Where is the bolder sitting on this mountain.
What shape is the boulder?
Is the boulder about to slip or is it about to roll or is it already moving or rolling, in which case, how fast?
What have you tried?
Determine the angle of the slope first:
tan (θ) = 300/900 = 1/3
θ = tan-1(1/3) = ≈18.43
Now draw the free body diagram of the object and you see,
friction = coefficient of friction*mass*g*cosθ
friction = coefficient of friction*10,000*9.8*cos18.43
which is approximately μ*90,364.61.
Visit www.dewwool.com/friction for more details on friction.
tan (θ) = 300/900 = 1/3
θ = tan-1(1/3) = ≈18.43
Now draw the free body diagram of the object and you see,
friction = coefficient of friction*mass*g*cosθ
friction = coefficient of friction*10,000*9.8*cos18.43
which is approximately μ*90,364.61.
Visit www.dewwool.com/friction for more details on friction.
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