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<span>當(dāng)前位置：</span>   <a href="/question?tree_type=category&xd=3&chid=6" class="pointer">高中物理</a> <span>/</span> <a href="javascript:;">單選題</a> </div> <div id="7yrobl1" class="m-wrap g-cw cfx"> <div id="y11gdlb" class="w fl"> <div id="eamsyiz" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="vyrjned" class="question-block"> <div id="ayjrpfx" class="q-mc"> <h1 class="q-tit"> 1. <a href="/paper/view-5174552.shtml" class="ques-origin a-pointer" target="_blank"> (2023高一下·成都期末) </a> 用手托著質(zhì)量為<em>m</em>的物體，從靜止開(kāi)始沿水平方向運(yùn)動(dòng)，前進(jìn)距離<em>s</em> ，速度為<em>v</em> ，物體與人手掌之間的動(dòng)摩擦因數(shù)為<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3E%CE%BC%3C%2Fmi%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"> ，則在以上過(guò)程中摩擦力對(duì)物體做的功為（　?。? </h1> <div id="rogwsqq" class="exam-s"> <span id="gwodasl" class="op-item"><span id="5tv82hf" class="op-item-nut">A . </span><span id="vjb0seu" class="op-item-meat"><em>mgs</em></span></span> <span id="6q636zi" class="op-item"><span id="snzs1ih" class="op-item-nut">B . </span><span id="gt3urho" class="op-item-meat">0</span></span> <span id="cz2ineu" class="op-item"><span id="2fbt0ts" class="op-item-nut">C . </span><span id="wq1wjah" class="op-item-meat"><img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmi%3E%CE%BC%3C%2Fmi%3E%3Cmi%3Em%3C%2Fmi%3E%3Cmi%3Eg%3C%2Fmi%3E%3Cmi%3Es%3C%2Fmi%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="qpp5btm" class="op-item"><span id="ytvvjsy" class="op-item-nut">D . </span><span id="eclaw4x" class="op-item-meat"><img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmfrac%3E%3Cmrow%3E%3Cmi%3Em%3C%2Fmi%3E%3Cmsup%3E%3Cmi%3Ev%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsup%3E%3C%2Fmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmfrac%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="y6jqnlc" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="2er3cuk" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=54110575" width="140px" height="140px" alt=""> <p style="text-align:center;margin-top: 10px">微信掃碼預(yù)覽、分享更方便</p> </div> <div id="citsp5w" class="analyize-extend JV_question__papers"> <h3 class="extend-mt">使用過(guò)本題的試卷</h3> <ul class="extend-mc"> <li> <a href="/paper/view-5174552.shtml" target="_blank" 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