Eqn Sheet (1)

# Elastic and inelastic collisions and how to use the

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: type of energy to another Chapter 8 • Know the difference between inertia and impulse and how to calculate the latter • Understand the difference between elastic and inelastic collisions and how to use the conservation of momentum to solve collision problems • Know the concept of the center of mass Chapter 10 • Be aware of the similarities between the linear and rotational equations of motions • Know about the relation between rotational and translational quantities • Be able to calculate the torque of systems • Understand the concept of the moment of inertia • Know about the definition and conservation of angular momentum ©Prep101 IDENTIFYING YOUR PROBLEM TYPE Are the objects moving? YES Static NO Kinematic Newton’s Law Energy Momentum Translational d, v, a Do the objects interact and touch each other? YES NO Kinematic Rotational θ, ω, α Newton’s Law Energy Momentum Translational ΣF = ma Are you required to find forces? Are there external forces involved? YES Newton’s Laws Rotational Στ = I α YES ∆E = ∆K + ∆U NO Energy Momentum NO ∆K + ∆U = 0 Are there external forces involved? Is there a height change or a compressed spring? YES Energy YES K = ½ mv2 + ½ Iω2 NO NO K = ½ mv2 Momentum, collisions Is the object spinning or rolling? Is there a force acting over a period of time? NO YES ∆P = 0 ∆L = 0 ∆P = ΣFt ∆L = Στt Are the objects rotating? NO YES Linear momentum Angular momentum ∆P = Σmv ∆L = Στt...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online