A triangular block (3) is wedged between a wall (W) and the ground (G). On top r

Question

A triangular block (3) is wedged between a wall (W) and the ground (G). On top rests a square block (2) attached to the wall by a rope. On top of the square block lies a trapezoidal block (1). The square block has mass m while both the triangular and trapezoidal block have mass 2m. Friction is present only between the surface of the square and trapezoidal block. (a) Treating each block as a point particle, draw a free-body-diagram for all three blocks. Scale each force vector relative to each other. (b) identify all Newton's third law force pairs. (c) Find an expression in terms of the wedge angle Theta, for the coefficient of friction that would just barely keep the trapezoidal block from sliding. (d) Find an expression for the tension in the cable as a function of Theta and m. (e) What is the normal force of the ground on the triangula block? (f) What is the normal force of the wall acting on the triangular block?

Explanation / Answer

Its a too big question for 175 points . Please Post it as a 350 points question or ask the question multiple times so as to raise its value to atleast more than 400 points . Good luck

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