12 in. B 6 in. D 3 in. 3 in. 12 in. PROBLEM 15.67 Robert's linkage is named after Richard Robert (1789-1864) and can be used to draw a close approximation to a straight line by locating a pen at Point F. The distance AB is the same as BF, DF and DE. Knowing that the angular velocity of plate BDF is 2 rad/s counterclockwise when 0= 90°, determine (a) the angular velocities of bars AB and DE, (b) the velocity of Point F. When = 90°, determine (a) the angular velocity of bar DE (b) the velocity of Point F.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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12 in.
B
6 in.
3 in. 3 in.
12 in.
D
12 in.
E
PROBLEM 15.67
Robert's linkage is named after Richard Robert (1789-1864) and can be
used to draw a close approximation to a straight line by locating a pen at
Point F. The distance AB is the same as BF, DF and DE. Knowing that
the angular velocity of plate BDF is 2 rad/s counterclockwise when
0= 90°, determine (a) the angular velocities of bars AB and DE, (b) the
velocity of Point F. When = 90°, determine (a) the angular velocity of
bar DE (b) the velocity of Point F.
Transcribed Image Text:12 in. B 6 in. 3 in. 3 in. 12 in. D 12 in. E PROBLEM 15.67 Robert's linkage is named after Richard Robert (1789-1864) and can be used to draw a close approximation to a straight line by locating a pen at Point F. The distance AB is the same as BF, DF and DE. Knowing that the angular velocity of plate BDF is 2 rad/s counterclockwise when 0= 90°, determine (a) the angular velocities of bars AB and DE, (b) the velocity of Point F. When = 90°, determine (a) the angular velocity of bar DE (b) the velocity of Point F.
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