{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

225_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

# 225_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

This preview shows pages 1–2. Sign up to view the full content.

SECTION 2.8 Impact Loading 219 Problem 2.8-10 A bumping post at the end of a track in a railway yard has a spring constant k 8.0 MN/m (see figure). The maximum possible displacement d of the end of the striking plate is 450 mm. What is the maximum velocity max that a railway car of weight W 545 kN can have without damaging the bumping post when it strikes it? Solution 2.8-10 Bumping post for a railway car k 8.0 MN/m W 545 kN d maximum displacement of spring d max 450 mm Find max K INETIC ENERGY BEFORE IMPACT KE Mv 2 2 Wv 2 2 g S TRAIN ENERGY WHEN SPRING IS COMPRESSED TO THE MAXIMUM ALLOWABLE AMOUNT

This preview has intentionally blurred sections. Sign up to view the full version.

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

{[ snackBarMessage ]}