Rotation motion Flashcards
What is the direction of angular velocity given by?
The right hand rule.
What would happen if the forces holding a particle in rotational motion disappeared?
The particle would have a linear velocity v which would continue.
What components can linear acceleration be split into?
Tangential and radial
What is tangential acceleration associated with?
The change in angular speed
Where is the radial acceleration directed towards?
The rotation axis known as the centripetal acceleration
What is the cause of acceleration in rotational motion?
Torque
What is the direction of torque?
The axis of rotation
What is torque a cross product of?
The vectors r and F
What are rotational analogs of Force and acceleration?
Torque and angular acceleration
What is inertia?
An objects resistance to motion
What is mass a measure of?
An objects inertia
What is the parallel axis theorem used to calulate?
The moment of inertia for any solid body about an axis which is parallel to an axis through the centre of mass
What is the equivalent to linear momentum in rotational motion?
Angular momentum
What is angular momentum the cross product of?
The vectors r and p
What is the conservation of angular momentum?
When the net external torque is acting on a system is zero, the total angular momentum of the system is constant.
