When we compare horses with other animals, especially elephants, we come to know that the former have a much sharper and better memory than that of elephants. Horses have larger teeth and their size is not equal in males and females. A male horse has 40 teeth while a female has 36 teeth in total.
Moment of Inertia. The second moment, or moment of inertia, of a point mass m about the origin is the mass times the square of the distance to the origin, I = m(x 2 + y 2). The moment of inertia is related to the kinetic energy of rotation. A mass m moving at speed v has kinetic energy. KE = Â½ mv 2.
The moment of inertia IC about an axis perpendicular to the movement of the rigid system and through the centre of mass is known as the polar moment of inertia. For a given amount of angular momentum, a decrease in the moment of inertia results in an increase in the angular velocity.hen a body is rotating, or free to rotate, around an axis, a torque must be applied to change its angular momentum. The amount of torque needed for any given rate of change in angular momentum is proportional to the moment of inertia of the body.