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The device in the sketch rotates about the vertical axis at ω 1800 revmin and the angle locating the arms relative to the vertical is known to vary as

The device in the sketch rotates about the vertical axis at ω = 1800 rev/min, and the angle locating the arms relative to the vertical is known to vary as θ = (π/3) sin (120t) rad, where t is in units of seconds. Determine the velocity and the acceleration of sphere A as a function of time. Then evaluate these expressions for the instants when the elevation of the sphere is a maximum and a minimum.

 

 

 

 

Jun 18 2020 View more View Less

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