CHAPTER 9: ROTATIONAL MOTION - Coggle Diagram
CHAPTER 9: ROTATIONAL MOTION
Average angular velocity
Instantaneous angular velocity
Every point on a rotating body has an angular velocity and a linear velocity.
object further from the axis of rotation moves faster.
number of complete revolution per second.
is the time one revolution.
Constant Angular Acceleration
a measure of the force that can cause an object to rotate about an axis.
torque is what causes an object to acquire angular acceleration.
Rotational Kinetic Energy
Kinetic Energy of a rotating objcect:
Object that has boh translation and rotational kinetic energy:
Work done by torque:
Moments of Inertia
quantitative measure of the rotational inertia of a body
The axis may be internal or external and may or may not be fixed.
The perpendicular- axis theorem(validfor flat objetcs):
a property of any object which can be rotated.
The rotational inertia of an object depends not only on its mass but also the location of its axisof rotation.