What is meant by inertial force?

inertial force, also called Fictitious Force, any force invoked by an observer to maintain the validity of Isaac Newton’s second law of motion in a reference frame that is rotating or otherwise accelerating at a constant rate.

What are the types of inertial forces?

Types of Inertia

• Inertia of rest – An object stays where it is placed, and it will stay there until you or something else moves it.
• Inertia of motion – An object will continue at the same speed until a force acts on it.
• Inertia of direction – An object will stay moving in the same direction unless a force acts on it.

What is inertial force in Reynolds number?

Concisely, the inertial force of a fluid is the driving force that is directly proportional to the rate of Reynolds number. Of course, the viscous force is a resistance that would decrease the velocity and Reynolds number of a fluid flow.

What is inertial force Class 11?

Inertia. The property of an object by virtue of which it cannot change its state of rest or of uniform motion along a straight line its own, is called inertia.

Why is inertia a force?

Inertia is a force. Inertia is a force which keeps stationary objects at rest and moving objects in motion at constant velocity. Fast-moving objects have more inertia than slow-moving objects. An object would not have any inertia in a gravity-free environment (if there is such a place).

What are inertial terms?

In your expression, the term m¨x is the “inertial term”. It describes the force needed to accelerate (¨x) the mass m. Hence, “inertial”. It can be neglected if you know that that term is small compared to other terms in the expression (for example, the velocity term with ˙x in it).

What is liquid inertia?

The inertia of liquid behaves like solid in recti-linear acceleration. But under rotational acceleration, the moment of inertia of liquid becomes small compared to that of solid.