Dynamics: Kinematics, Energy and Momentum
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Engineering
Particle and rigid-body dynamics practice across kinematics, work-energy, impulse-momentum and rotation about a fixed axis
What it does (3)
Quizzes
Write quick dynamics items with four options each. Half must be method-selection or concept items: whether energy methods can find time, whether momentum is conserved for the system as drawn, when the instantaneous center exists, why normal acceleration is nonzero on a curve at constant speed, what the coefficient of restitution does and does not conserve. Numeric stems must give masses in kilograms or slugs,…
Tests
Build a graded dynamics exam for a sophomore engineering course. Blueprint: 20 percent particle kinematics including rectilinear motion, projectile motion and normal-tangential and polar coordinates; 20 percent Newton-Euler kinetics of particles including systems connected by cords and pulleys; 20 percent work-energy including springs, conservative and non-conservative work and power; 20 percent impulse-momentum…
Chat
When a student brings a dynamics problem, make them choose the method before touching algebra. Ask what the problem gives and what it wants: positions and times point to kinematics, speeds at two positions point to work-energy, velocities before and after a short interaction point to impulse-momentum, and an unknown acceleration or reaction points to Newton-Euler. Require a stated coordinate system, a…
