Rotational Motion 672021 Rotational motion 1 Frame of
- Slides: 18
Rotational Motion 6/7/2021 Rotational motion 1
Frame of Reference n n Rigid Body Everything measured relative to an axis of rotation Rotational Motion: Axis is located within the rigid body u Circular motion: axis is outside of the body u 6/7/2021 Rotational motion 2
Types of Quantities n n 6/7/2021 Linear Quantities Angular Quantities Rotational motion 3
Position/Displacem ent n Linear Quantity Displacement = X= X-X 0 u Unit: Meter u n Angular Quantity r r Radian u = l/r u Units: ? u 1 radian = 57. 3 u Angular displacement= - 0 = u 6/7/2021 Rotational motion l 4
Velocity n Linear v = x/ t u Units: m/s u n Angular velocity = (omega) = / t u Units: radians/second u 6/7/2021 Rotational motion 5
Acceleration n Linear a = v/ t u Units: m/s 2 u n Angular acceleration = (alpha) = / t u Units: radians/second 2 u 6/7/2021 Rotational motion 6
Mass n Linear m u Units: Kg u n Angular Moment of Inertia =I u Units: varies u Will cover later u 6/7/2021 Rotational motion 7
Force n Linear Force- any push or pull u Units: Newtons u n Angular u Torque- the cross product of a force and the lever arm at which it is applied u =rx. F u Units: Nm or ft lbs 6/7/2021 Rotational motion 8
Torque (continued) n Force is perpendicular to the radius F r use: = r x F = r·F 6/7/2021 Rotational motion 9
Torque (continued) n At an angle n 6/7/2021 = r · Fsin Rotational motion 10
Net Torque n = net = cw + ccw r r r 6/7/2021 Rotational motion 11
Rotational Motion Part 2 6/7/2021 Rotational motion 12
Center of Mass n n 6/7/2021 Effective point that all forces act upon. “balance point” Rotational motion 13
Inertia n Linear Mass u Units: Kg u n Angular Moment of Inertia/Rotational Inertia – describes the distribution of mass for a given object - Or an object’s tendency to continue to rotate or remain at rest u I = mr 2 (Hoop) u Different for different objects u 6/7/2021 Rotational motion 14
Moment of Inertia (continued) n n n 6/7/2021 Single object moving in a circle Hoop Disc or Solid Cylinder Sphere Rod Through Center Rod Through End Rotational motion I = mr 2 I = ½mr 2 I = (2/5) mr 2 I = (1/12) m. L 2 I = (1/3) m. L 2 15
Kinetic Energy n Linear u n Angular u 6/7/2021 KE = ½ mv 2 KErot= ½ I 2 Rotational motion 16
Momentum n Linear u n Angular u n L = I Conservation of Angular Momentum u 6/7/2021 p = mv I =I 0 0 = constant Rotational motion 17
Vector Nature of Angular Quantities n n n 6/7/2021 Vectors: Displacement, velocity, acceleration, force, momentum, etc. Same quantities are vectors in the angular frame Right Hand Rule Rotational motion 18
- Cpu machine cycle
- 672021
- Rotational equilibrium and rotational dynamics
- Rotational equilibrium and rotational dynamics
- Frame by frame animation programs
- Pengertian animasi frame by frame
- Risanuri hidayat
- Frame relay frame format
- Tangential speed
- Spectra of diatomic molecules
- Circular motion formula
- Ap physics c rotational motion
- Tangential torque
- Rotational motion
- Irrotational flow means
- Rotational kinematics
- Rotational dynamics lab
- The blade of a lawn mower is rotating at an angular
- Translational and rotational motion