Q3: True and False:
If force Q is 455 N in the direction shown in Figure 3, for the configuration at the instant when
$\theta_2$ = 75°, draw (in a separate page with a suitable scale) the mechanism diagram. Neglect the
friction effects. Take: AB = DE = 30 mm, BC = 18 mm, CD = 37 mm, AD = DF = 33 mm, EG
= 56 mm.
1. The reaction force at link 6 is not exceed 650 N.
a. True
b. False
2. The torque ($T_{61}$) around point F is about 7.5 N m cw.
a. True
b. False
3. The force $F_{56}$ is equal to the reaction force at link 6.
a. True
b. False
4. The force $F_{45}$ is approximately 246 N and in $\angle$ 200° direction.
a. True
b. False
5. The reaction force at link 4 is about 9 N and in $\angle$ 15° direction.
a. True
b. False
6. The reaction force at point A is not exceed 20 N and in $\angle$ 203°direction.
a. True
b. False
7. The external torque ($T_{12}$) that applied to point A, which makes the mechanism, statically
equilibrium is about 375 N mm ccw.
a. True
b. False
