MT1 Review 2 sln - From<Saved by Windows Internet Explorer 7&gt Subject MT1SundayReview Date Wed 13 Dec 2006 12:29:28-0800

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Unformatted text preview: From: <Saved by Windows Internet Explorer 7> Subject: MT1SundayReview Date: Wed, 13 Dec 2006 12:29:28 -0800 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0030_01C71EB2.552CF490" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 X This is a multi-part message in MIME format. T------=_NextPart_000_0030_01C71EB2.552CF490 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Location: http://panic.berkeley.edu/~jessica/phys7a/MT1SundayReviewSolutions.html h =EF=BB=BF<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>MT1SundayReview</TITLE> <META http-equiv=3DContent-Type content=3D"text/html; charset=3Dutf-8"> <META content=3D"Jessica Kirkpatrick" name=3Dauthor> <META content=3D"MSHTML 6.00.5730.11" name=3DGENERATOR></HEAD> <BODY>Midterm 1 Review Solutions<BR>Jessica Kirkpatrick<BR>Sunday, = October 1st,=20 2006<BR><BR>  <BR>Problem 1:<BR>A rocket starts from rest on the = ground and=20 accelerates vertically upward at a rate of 5.00 m/s=C2=B2 until it = reaches a height=20 of 2.00=C2=B710=C2=B3 m. At that point its engines shut off and the = rocket goes into=20 free-fall with an acceleration of -9.80 m/s=C2=B2.<BR>(a) What is the = maximum height=20 the rocket reaches?<BR>(b) What is the rocket's velocity just before it = crashes=20 into the Earth?<BR>(c) Concept question: a rocket engine expels burnt = fuel out=20 its bottom =E2=80=93 explain how<BR>this exerts a force on the = rocket.<BR><BR><IMG=20 style=3D"WIDTH: 498px; HEIGHT: 658px" alt=3Dsolution1-1=20 src=3D"http://panic.berkeley.edu/~jessica/phys7a/solutions1-1.jpg"><BR><I= MG=20 style=3D"WIDTH: 494px; HEIGHT: 123px" alt=3Dsolution1-2=20 src=3D"http://panic.berkeley.edu/~jessica/phys7a/solutions1-2.jpg"><BR>Pr= oblem=20 2:<BR>A cannon is arranged to fire projectiles, with initial speed v0, = from the=20 base of a hill of elevation angle =CE=B1 (alpha). At what angle =CE=B8 = (theta) from the=20 horizontal should the cannon be aimed so as to obtain the maximum = possible range=20 R up the face of the hill? <BR><BR> <IMG=20 style=3D"WIDTH: 209px; HEIGHT: 112px" alt=3Dproblem1=20 src=3D"http://panic.berkeley.edu/~jessica/phys7a/problem1.png"><BR><BR><I= MG=20 style=3D"WIDTH: 521px; HEIGHT: 641px" alt=3D""=20 src=3D"http://panic.berkeley.edu/~jessica/phys7a/solutions2-1.jpg"><BR><I= MG=20 style=3D"WIDTH: 548px; HEIGHT: 193px" alt=3D""=20 src=3D"http://panic.berkeley.edu/~jessica/phys7a/solutions2-2.jpg"><BR><B= R>Problem=20 3:<BR>A 25 kg block slides on a 15 kg block which are attached by a = pulley on a=20 plane inclined at 35=C2=B0 as shown in the figure. All of the surfaces = are=20 frictionless.<BR>(a) Find the acceleration of each block.<BR>(b) Find = the=20 tension in the cable connecting the two blocks.<BR>(c) Now there is a=20 coefficient of kinetic friction of mu1 =3D 0.05 between the 15kg block = and the=20 plane, and mu2 =3D 0.1 between the two blocks.  What are the new=20 plane, and mu2 =3D 0....
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This note was uploaded on 03/09/2010 for the course PHYSICS 7A taught by Professor Lanzara during the Fall '08 term at University of California, Berkeley.

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MT1 Review 2 sln - From<Saved by Windows Internet Explorer 7&gt Subject MT1SundayReview Date Wed 13 Dec 2006 12:29:28-0800

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