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10 cards from this deck
The ladder ABABAB makes an angle of 70°70°70° with the horizontal.
The ladder has a length of 8 m.
Surface roughness and normal force affect friction at B.
RW=60R_W = 60RW=60 N, normal reaction at AAA equals 606060 N.
Use weight=mass×gravity\text{weight} = \text{mass} \times \text{gravity}weight=mass×gravity; solve for mass.
The uniform rod has a weight of 20 N.
The length of the rod ABABAB is 333 m.
Point C is 1 m directly above point A.
θ≈18.435°\theta \approx 18.435°θ≈18.435° using tan(θ)=1/3\tan(\theta) = 1/3tan(θ)=1/3.
T=mg+T = mg +T=mg+ additional forces acting upwards.
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