+1 vote
in Machine Dynamics by (34.3k points)
Why the inertia torque acts in the opposite direction to the accelerating couple?

(a) Bring the body in equilibrium

(b) To reduce the accelerating torque

(c) Acts as a constraint torque

(d) Increase the linear acceleration

I had been asked this question in an online quiz.

My question is from Resultant Effect of a System of Forces Acting on a Rigid Body in section Inertia Forces in Reciprocating Parts of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
The correct choice is (a) Bring the body in equilibrium

Easiest explanation: The inertia torque is an imaginary torque, which when applied upon the rigid body, brings it in equilibrium position. It is equal to the accelerating couple in magnitude but opposite in direction.

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