angular motion Flashcards
what is moment of itnertia/
the resistance of a body to change it’d angular motion
what are the factors tar effect moment of intent/
The distribution of mass, the perpendicular distance between the axis of rotation and the body
what is the calculation of moment of inertia?
the sum of mass x distribution from axis
Kgm squared
What is the angular velocity?
The rate of change in angular displacement
How does a person generate an increase in angular velcotu?
the smaller perpendicular distance means a decrease in inertia increasing velocity and more prone to rotate
HWta is the calculation of angular veclotu?
angular displacement divided by time
measured in rad/s
What is angular momentum?
The quantity of motion possessed by a rotating object
How do we work out the angular momentum?
Moment of inertia x angular velcoity
measured in kgm squared rad/s
What is the application of angularR MOMENTUM?
The body will lean forward changing their centre of mass, the reaction force will move outside the body centre of mass with an eccentric force creating a torque
an eccentric force/torque is applied outside the body centre of mass
What is angular motion?
a body or part of a body moves in a circle about an axis of roatation
