EGM3400 Test 2A redo solution Spring 2010

# EGM3400 Test 2A redo solution Spring 2010 - ‘ 4 7 1 EGM...

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

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.

Unformatted text preview: ' ‘ 4.:- 7 1 _ EGM 3400/3401 Spring 2010 Exam 2 a ‘ ~ 090 Name 54 mi 4,31 Please draw a box around all your ﬁnal answers on all problems. BE SURE T 0 SHOWMA GNITUDE AND DIRECTION F0 ALL VECTOR QUANTITIES. When complete, sign the honor pledge. 5 f; f t Fﬁn my honor, I have neither given nor received unauthorized aid on this test. Signature \1. Ball B is hanging from an inextensible cord. An identical ball A is released from rest when it is just touching the cord and drops through the vertical distance hA = 16 in. before striking ball B. Assume e = 0.9 and‘no friction. 1a) (5 points) What is the angle between the cord and the normal axis just prior to impact? The normal axis is a line drawn through the centers of the balls. 1c) (5 points) Draw a diagram for ball A showing total velocity, normal velocity, and tangential velocity both before and after impact. On the diagram, also Show all impulses during the collision. \ VA VA,’ 7 1d) (5 points) Draw a diagram for ball B showing total velocity, normal velocity, and tangential velocity both before and after impact. On the diagram, also show all impulses during the collision. .* TN; i l EGM 3400/3401 Spring 2010 Exam 2 1e) (5 points) What is the velocity of ball B just after impact? F b / ml!me = WA" we — Wanna + avg 0) l \ V V3ﬂ_VAAI: C(Vﬁn'%A> VBY"_ VR/MQ ) vhzvkma Vim! VBWI~ 3V“ VB [ma “‘3 VA waé CZ) sabjhéi; (a nm+s CD 0 I (Ve’me - 3Vnca>e>14~9 — Vnz/wve +'\/.v/ ,- Va I(M6M€i+l\ eU/r meme 1* Vim/we Vﬁt/z Vﬂ-t 1 V7! M6 , i V; = 3V4 6039/4416 +V4mem9 ‘ (“1&1qu “kl/iii _\ Mze-H l % +‘ \lgllé.oclq-£l5l ' 1i) (5 points) What is the maximum vertical displacement in inches in; of ball B? . a ‘ lgﬁlﬂv 1 Tﬁm‘rvﬁl ‘1 /\)blZ‘l:© 3 O*/6ll‘5 L l - ‘VLl i Q,oa144 /' ,3 «B- v «E ‘ m : mw ...
View Full Document

## This note was uploaded on 05/17/2011 for the course EGM 3400 taught by Professor Matthews during the Summer '08 term at University of Florida.

### Page1 / 2

EGM3400 Test 2A redo solution Spring 2010 - ‘ 4 7 1 EGM...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online