12-190. The box slides down the helical ramp such that r =
Chapter 12, Problem 12-190(choose chapter or problem)
12-190. The box slides down the helical ramp such that r = 0.5mj = (OJ/^rad, and z = (2-0.2r)m, where t is in seconds. Determine the magnitudes of the velocity and acceleration of the box at the instant 0 = 27rrad.
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