help! mechanics 2morrow.

IGCSE/GCSE/O & A Level/IB/University Student Forum »
Qualification »
GCE AS & A2 Level »
Subject Doubts »
Math »
help! mechanics 2morrow.

« previous next »

Pages: 1 [2] Go Down

Author Topic: help! mechanics 2morrow. (Read 2348 times)

Taqat256

Newbie
Posts: 1
Reputation: 11

Re: help! mechanics 2morrow.

« Reply #15 on: May 18, 2010, 07:17:28 pm »

can someone help me with O/N 2009 q.4 part (iii)
how do we find the coefficient of friction?

Logged

nid404

Guest

Re: help! mechanics 2morrow.

« Reply #16 on: May 18, 2010, 08:04:04 pm »

Find W you mean?

u=0.75

R= tensionXsin theta + W
F= tension X cos theta

u=F/R

Logged

Pages: 1 [2] Go Up

« previous next »

IGCSE/GCSE/O & A Level/IB/University Student Forum »
Qualification »
GCE AS & A2 Level »
Subject Doubts »
Math »
help! mechanics 2morrow.

\n\t\t\t\t\t\t\t\t\t

<' + '/div>\n\t\t\t\t\t\t\t\t\t

%body%<' + '/textarea><br />\n\t\t\t\t\t\t\t\t\t<input type="hidden" name="a9284d349360" value="c259058f46094aaf36e00839ed61b0c5" />\n\t\t\t\t\t\t\t\t\t<input type="hidden" name="topic" value="7872" />\n\t\t\t\t\t\t\t\t\t<input type="hidden" name="msg" value="%msg_id%" />\n\t\t\t\t\t\t\t\t\t<div class="righttext">\n\t\t\t\t\t\t\t\t\t\t<input type="submit" name="post" value="Save" tabindex="2" onclick="return oQuickModify.modifySave(\'c259058f46094aaf36e00839ed61b0c5\', \'a9284d349360\');" accesskey="s" class="button_submit" />  <input type="submit" name="cancel" value="Cancel" tabindex="3" onclick="return oQuickModify.modifyCancel();" class="button_submit" />\n\t\t\t\t\t\t\t\t\t<' + '/div>\n\t\t\t\t\t\t\t\t<' + '/div>',
							sTemplateSubjectEdit: '<input type="text" style="width: 90%;" name="subject" value="%subject%" size="80" maxlength="80" tabindex="4" class="input_text" />',
							sTemplateBodyNormal: '%body%',
							sTemplateSubjectNormal: '<a hr'+'ef="https://studentforums.biz/index.php?PHPSESSID=enn68sv6hdoedfp66e4u87jqo6&'+'?topic=7872.msg%msg_id%#msg%msg_id%" rel="nofollow">%subject%<' + '/a>',
							sTemplateTopSubject: 'Topic: %subject%  (Read 2348 times)',
							sErrorBorderStyle: '1px solid red'
						});

aJumpTo[aJumpTo.length] = new JumpTo({
							sContainerId: "display_jump_to",
							sJumpToTemplate: "<label class=\"smalltext\" for=\"%select_id%\">Jump to:<" + "/label> %dropdown_list%",
							iCurBoardId: 146,
							iCurBoardChildLevel: 2,
							sCurBoardName: "Math",
							sBoardChildLevelIndicator: "==",
							sBoardPrefix: "=> ",
							sCatSeparator: "-----------------------------",
							sCatPrefix: "",
							sGoButtonLabel: "Go"
						});

aIconLists[aIconLists.length] = new IconList({
							sBackReference: "aIconLists[" + aIconLists.length + "]",
							sIconIdPrefix: "msg_icon_",
							sScriptUrl: smf_scripturl,
							bShowModify: true,
							iBoardId: 146,
							iTopicId: 7872,
							sSessionId: "c259058f46094aaf36e00839ed61b0c5",
							sSessionVar: "a9284d349360",
							sLabelIconList: "Message Icon",
							sBoxBackground: "transparent",
							sBoxBackgroundHover: "#ffffff",
							iBoxBorderWidthHover: 1,
							sBoxBorderColorHover: "#adadad" ,
							sContainerBackground: "#ffffff",
							sContainerBorder: "1px solid #adadad",
							sItemBorder: "1px solid #ffffff",
							sItemBorderHover: "1px dotted gray",
							sItemBackground: "transparent",
							sItemBackgroundHover: "#e0e0f0"
						});
					}
				// ]]></script>-->
			<![CDATA[
				var verificationpostHandle = new smfCaptcha("https://studentforums.biz/index.php?PHPSESSID=enn68sv6hdoedfp66e4u87jqo6&action=verificationcode;vid=post;rand=f1c149e0df8c15238090b4eac573d3ad", "post", 1);
			// ]]></script>-->
		</div>
	</div></div>
	<div id="footer_section"><div class="frame">
		<ul class="reset">
			<li class="copyright">
			<span class="smalltext" style="display: inline; visibility: visible; font-family: Verdana, Arial, sans-serif;"><a href="https://studentforums.biz/index.php?PHPSESSID=enn68sv6hdoedfp66e4u87jqo6&action=credits" title="Simple Machines Forum" target="_blank" class="new_win">SMF 2.0.19</a> |
<a href="http://www.simplemachines.org/about/smf/license.php" title="License" target="_blank" class="new_win">SMF © 2015</a>, <a href="http://www.simplemachines.org" title="Simple Machines" target="_blank" class="new_win">Simple Machines</a>
			</span></li>
			<li><a id="button_xhtml" href="http://validator.w3.org/check?uri=referer" target="_blank" class="new_win" title="Valid XHTML 1.0!"><span>XHTML</span></a></li>
			<li><a id="button_rss" href="https://studentforums.biz/index.php?PHPSESSID=enn68sv6hdoedfp66e4u87jqo6&action=.xml;type=rss" class="new_win"><span>RSS</span></a></li>
			<li class="last"><a id="button_wap2" href="https://studentforums.biz/index.php?PHPSESSID=enn68sv6hdoedfp66e4u87jqo6&wap2" class="new_win"><span>WAP2</span></a></li>
		</ul>
	</div></div>
</div>
</body></html>

News:

Author Topic: help! mechanics 2morrow. (Read 2348 times)

Taqat256

Re: help! mechanics 2morrow.

nid404

Re: help! mechanics 2morrow.