Week 6 Term 2 2023

 Homework:

• Ex 4A, p.100-102, C.O.M.
• Ex 4B, p.108-112, Momentum & C.O.M. in 1D
• Ex 4C, p.116-122, Momentum & C.O.M. in 2D
• Act 7A, p.87-88 Motion, Force and Energy
• Act 7B, p.91-92 Impulse
• Act 7C, p.95-96 Conservation of Momentum
• Act 7D, p.100-101 C.O.M.
• Act 8A, p.120-121 Horizontal Circles and Banked Corners
• Act 8B, p.124-125 Vertical Circles
• Act 8C, p.129 Sattelites
• Ex 4D, p.128-131, Banked Corners (Circular Motion)
• Ex 4E, p.138-142, Vertical Circles
• Ex 4F, p.145-147, Gravity
• Ex 4G, p.153-156 Satallites
• Act 9A, p. 128-129, Angular Motion
• Act 9B, p. 133-135, Torque - Angular Force
• Act 9C, p. 128-129, Angular Momentum
• Ex 4H, p.160-162, Rotational Kinematics
• Ex 4I, P.167-171, Rotational Force & Momentum
• Ex 4J, p.175-177, Rotational Kinetic Energy

Radians

Radian Measure is used so that we can easily calculate an arc length, d (m), given an angle, 𝛉 (Rad) and the radius, r (m).

d = r𝛉

This in turn allows us to relate velocity, v (ms-1) to angular velocity ⍵ (rads-1), in the same way.

v = r⍵, 

also ⍵ = 2𝝅f

 This also allows us to relate acceleration, a (ms-2), to angular acceleration, α (rads-2), in the same way.

a = rα

The rotational kinematics work just like the translational kinematic equations when there is a constant acceleration.

Rotational Kinematics Review

Rotational Kinematics

Rotational Kinematics Physics: Problems, Basic Introduction, Equations & Formulas

Rotational Motion Physics, Basic Rotational Motion Physics: Introduction, 

Angular Velocity & Tangential Acceleration

Rotational Inertia

Rotational Inertia

Torque

Angular Momentum

Angular Momentum - Sixty Symbols

Gyroscopic Precession

Slow Motion Flipping Cat Physics

Counter Steering Physics

The Bizarre Behavior of Rotating Bodies, Explained

Ellipzoids and the Bizarre Behavior of Rotating Bodies