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The rectangular object in Figure 11-25 consists of four
Chapter 11, Problem 83P(choose chapter or problem)
The rectangular object in Figure 11–25 consists of four masses connected by light rods. What power must be applied to this object to accelerate it from rest to an angular speed of 2.5 rad/s in 6.4 s about (a) the x axis, (b) the y axis, and (c) the z axis (which is through the origin and perpendicular to the page)?
Questions & Answers
QUESTION:
The rectangular object in Figure 11–25 consists of four masses connected by light rods. What power must be applied to this object to accelerate it from rest to an angular speed of 2.5 rad/s in 6.4 s about (a) the x axis, (b) the y axis, and (c) the z axis (which is through the origin and perpendicular to the page)?
ANSWER:
Step 1 of 9
a.)
We have to find the power that must be applied to a rectangular object to accelerate it from rest to an angular speed of 2.5 rad/s in 6.4 s about the axis.
The power that must be applied to rotate the object about the axis is given by the expression,
=
where,
Work done in rotating the object
about the axis in W