Figure 7.7 shows a power hacksaw. At this instant, the electric motor rotates counterclockwise and drives the free end of the motor crank (point B) at a velocity of 12 in./s. Additionally, the crank is accelerating at a rate of 37 rad/s^2.  The top portion of the hacksaw is moving toward the left with a velocity of 9.8 in./s and is accelerating at a rate of 82 in./s^2. Answer the following question: Draw the Acceleration Polygon. Find the relative Acceleration of C with respect to B. Locate all the Instantaneous Centers.

Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter6: Stresses In Beams (advanced Topics)
Section: Chapter Questions
Problem 6.3.1P: Repeat Problem 6.2-17 but now use a transformed-section approach.
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Figure 7.7 shows a power hacksaw. At this instant, the electric motor rotates counterclockwise and drives the free
end of the motor crank (point B) at a velocity of 12 in./s. Additionally, the crank is accelerating at a rate of 37 rad/s^2. 
The top portion of the hacksaw is moving toward the left with a velocity of 9.8 in./s and is accelerating at a rate of 82 in./s^2.

Answer the following question:

  1. Draw the Acceleration Polygon.
  2. Find the relative Acceleration of C with respect to B.
  3. Locate all the Instantaneous Centers.
15°
6.0",
B
130°
JO
1.75"
FIGURE 7.7 Power saw for Example Problem 7.5.
Transcribed Image Text:15° 6.0", B 130° JO 1.75" FIGURE 7.7 Power saw for Example Problem 7.5.
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