Problem 14 If the clockwise moment M 7 Nm and R 50 N is th

Problem 14 If the clockwise moment M = 7 N-m and R = 50 N, is the system in equilibrium? In other words, is the resultant moment about the shaft of the electric motor caused by M and the couple forces R &-R equal to zero 150 mm 60 60 yo 50 (a) Yes, the system is in equilibrium. (b) No, the system is not in equilibrium. (c) Not enough given information to assess the system for equilibriurm

Solution

To find whether it is in equilibrium or not, find the couple due to R & -R. If this couple is equal to M in opposite direction then it is in equilibrium otherwise not.

Couple due to R & -R = Force * perpendicular distance between them

= 50*{2*(0.15/tan(60))}

=8.66 N.M

Hence this is not equilibrium.