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After studying the topic a student is to

Dynamics of material point | The rate of change of momentum of material point is proportional to the net force of all the forces acting on it and in the direction of that force | If no forces act on a material point it will not be accelerated. | AFTER STUDYING THE TOPIC A STUDENT IS TO | Active vocabulary | Moment of inertia | Active vocabulary | The mechanics laws are invalid with respect to this frame of reference | Forces of Inertia in Rotating Frame of Reference | Centrifugal force of inertia |


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understand: 1. Non-inertial frame of reference moves with acceleration respectively inertial one, and then forces of inertia appear. 2. Forces of inertia depend on acceleration of non-inertial frame of reference and mass of a body. 3. Forces of inertia are not the result of the action of one body on another. 4. Writing down the dynamics equation in the non-inertial frame of reference, it is necessary to take into account not only forces of interaction between the real bodies, but also forces of inertia. 5. Two forces of inertia appear in the rotating non-inertial frame of reference: centrifugal force of inertia and Coriolis force of inertia. 6. The Coriolis force acts only on an object which moves relative to the non-inertial frame of reference. It changes trajectory of a moving object and it doesn’t perform work. 7. The centrifugal force acts on any object whether it moves or not. The direction of the centrifugal force is always perpendicular to axis of revolution and radially outward.   know: 1. Definitions of non-inertial frame of reference and forces of inertia. 2. Formulation of equivalence principle of inertia forces and gravity force. 3. Features of inertia forces.
Formulas: is total force in the non-inertial frame of reference; is force of inertia; is basic dynamics law in the non-inertial frame of reference; is force of inertia in the rotating frame of reference; is centrifugal force of inertia; is Coriolis force of inertia;
get skills: 1. To write down an equation of a body motion in non-inertial frame of reference; 2. To determine direction and modulus of inertia forces.

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