A Bo X B (1) ñ Ө w, a Platform S 0 Fixed platform cord arc length angle Plus rotation (Question 1) A disk, 'A' in the figure is moving along a straight-line path (upward) in the air, whereas a disk, 'B' is rotating with the initial velocity in the tangential direction, 10.0 (m/s) at the initial point, (1) (S = 0) along a circular path having a radius of curvature, PB = 400 (m) on the fixed platform (it does not rotate). The friction coefficient is µ = 0.1 between the platform and 'B'. The cord breaks when the tension of it reaches up to 3 (N). The mass of each disk is 3 (Kg). The acceleration of 'A' is a = 5 (m/s²) in Y-direction. Gravity, g = 10 (m/s²).
(1.1) Compute the tangential component of the critical velocity of 'B', Vt,B (m/s) using the equation of motion of 'B'. (5 points) (1.2) Compute the tangential component of the critical acceleration of 'B', at, (m/s²) using the equations of motion of 'B'. (5 points). (1.3) Compute the critical time, 't' and angle (rad), '9'. (5 points) (1.4) Find the relationship between the 'n - t' and the 'î-' frames. (5 points) (1.5) redefine a in the ‘î - ĵ' frame. (5 points) (1.6) Determine the acceleration of 'B' as measured by 'A' at t = 10 in the 'î - ĵ' frame: B/A (5 points)
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