The equilibrium rule,
(a) objects or systems at rest.
(b) objects or systems in uniform motion in a straight line.
(c) both of these.
(d) none of these.
Answer to Problem 7RAT
The correct option for the statement " The equilibrium rule,
Explanation of Solution
The equilibrium rule or condition states that the summation of all the forces operating over a body in a particular x, y, and z-direction becomes zero. Along with forces, the net resultant torsion effect operating on the body in a particular direction also becomes zero in magnitude.
This condition is only applicable when the body remains stationary or moving in a straight path with constant speed. Otherwise, if the body is in rotational motion or oscillation, the direction of forces acting over a body changes continuously, and it can't be balanced. From this, it is concluded that option (c) will be correct in the given options.
Conclusion:
Therefore, the correct option for the statement " The equilibrium rule,
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