Final Exam Study Guide PDF

Preview

Summary

Download Final Exam Study Guide PDF

Description

Main Idea: Y is the same in both cases described.

HOW TO SOLVE: Step 1: Find speed of block just before it strikes putty: Use Energy Principle : System : Block, Earth Surroundings: Track b/c force due to track is normal

Step 2: Find speed of Block + Putty after collision: Use Momentum Principle.

Step 3: Find height of Block + Putty system: Use Energy Principle. : System : Block + Putty, Earth Surroundings: Track

Substituting

we get :

DO NOT use: Energy conservation b/w initial and final states in Step 2, as some of the initial KE is lost during collision and converted tin internal energy. HOW TO TWEAK: Imagine final height was given and initial height asked for. Imagine masses were changed....