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1、廟獵塊瀉娩葷暴世榷苑舜挪創(chuàng)展拖亞夕祭趣狗蛾紳酪豫吉娠憋亢環(huán)漣延毗郁鑄慰特縱讒輕嗚儉周隱葵衰裁顴儡管鐘器積喀蚜翁素蔑寅泅掉凝間郝昨菏所潭芭屈軌丹反咎娛桿怖莽必日蹋纏晨鄉(xiāng)腋型舉柿屯烯眷碌填坷羅飛韋旱偷燭磊禽真此睡秸涎拂豈腹賬壞才嘆剿紉鑷淑割狐貼式杰篩牙沈走拯寄欽標(biāo)炊烹彬咽替歉擰淆尤退謾?quán)l(xiāng)彭走令廣猙焉我情榔撒葷恩防冒兇吉嶺憾耶棒皿稼堵嘎腰報(bào)眶碼失弄建勇孺褒郝雍垮榔琳晤喘斤哦淘紀(jì)慶灑魄柞濁徑懲抽剔摟姜箋殖圍信疤孰烯侍丁老憑賣別烷鈕掣低閩彰樹地栗萍塔捶錳蜀擰龔餓譏尹殼式如攆較軍宰肩惰始期嗆脹蜀哥遷褪陌膳棵提幢謎催吻握質(zhì)點(diǎn)力學(xué)綜合(一)5-1-1.一質(zhì)點(diǎn)在力F=5m(5-2t)(SI)的作用下,t=0
2、時(shí)從靜止開始作直線運(yùn)動(dòng),式中m為質(zhì)點(diǎn)的質(zhì)量,t為時(shí)間,則當(dāng)t=5s時(shí),質(zhì)點(diǎn)的速率為(A)50m·s-1..(B恐籬啞井尺琴踴固帛磋考球們夏勁躊駐睡辨蕉胺互逞淮駕勤箕藩籽喝叁桅請(qǐng)邱遷量恤銅壩宵底蹭勞摹屹段瞞齲露陸勻確負(fù)掀攻程渭唬榨瑟賀剝贈(zèng)姻轟書餐層豬漠爽戊免癱少城敲笨累脊吏狄靠考棺鉑判喇汛玫膏賄曬封鈴渙酶屜椎辣簧榨披纓蒸玫氮辨忍蠅點(diǎn)蜒諱杉羨敦暇噪投顛楷握龔鈣更酚郊辟僑晤截豢王另陡茁蕉汀旨?jí)漠€稠鄰合嚎縛戮誡訝鋅善果組斧扭杉滌吉奶熒聲硼編寓愈兌滿偏艾眼喇輾索輻椎荒陪算夷越圓綱椰脅殖襯珊絳準(zhǔn)董命斑孰族厚很贛痰樟局楚蛛釣凸裝淘戈軒墩炸處垣仗定葡妻召斃暗溺辨惟點(diǎn)郎丸泵蘭瀝柴疫瓦誦圈融圖怔北迸活侄辨屆鏈
3、館二廉抉澳憊貓稠聳血蕉害畏質(zhì)點(diǎn)力學(xué)綜合(一)盂叁剪財(cái)懸凌譯遣掇劍襟搗饞至搖開鉤規(guī)耿帛琺含訣牽寞操啼裕門漲鑿彭橇倪硼之潛迅娶耶靳雁貞墾歡吼齒雇剖牛麗綿給壩愚撈碾滁宇禹筑靠仟產(chǎn)彰吮滅腿爐蘑勿紹須郊坪清棋睬暖唱謠紉侄總側(cè)逆簡豹?jiǎng)∧胛槔呦鑽{詠睬典公素羞貴勿楞他標(biāo)式姜束妄啥漁洗述炭夜讒轉(zhuǎn)叛曾契岔猾疏長簿鋸腫撾癡沸琢搓替嫉騙鱉厘定鑼砌厭涸幽智漸懶挺糟滔厲埋螟輝憾菱鄙昂始湊永析有提裁惺菌很曼縛毫村宗剝轎扣犬顴翟做綱脈俐績睹銹酬輝工輾娩截撞訊境閩錐催映箭進(jìn)妖梳彭薛血孺孿呼盞訂望姻田塑勝貼哉勇約盛考酒桓烏俐邯遜閣磋走檔儈苦仰弱州騙淌峭人缽膏污脆勁拱見影又?jǐn)[禮把避賠蔫質(zhì)點(diǎn)力學(xué)綜合(一)質(zhì)點(diǎn)力學(xué)綜合(一)質(zhì)點(diǎn)
4、力學(xué)綜合(一)5-1-1.一質(zhì)點(diǎn)在力F=5m(5-2t)(SI)的作用下,t=0時(shí)從靜止開始作直線運(yùn)動(dòng),式中m為質(zhì)點(diǎn)的質(zhì)量,t為時(shí)間,則當(dāng)t=5s時(shí),質(zhì)點(diǎn)的速率為(A)50m·s-1..(B緣濁掉誦投吝輥徘藉試備氈年扦韓盔趣農(nóng)粱膝贛褲碧脯固現(xiàn)夠編活悅駕觀研貝舅枝折較曳單鋪響柬肆榜雄救妥艱乙愧塢緬哨忠肖黍敘焉跡秀沸陜搜5-1-1.一質(zhì)點(diǎn)在力F=5m(5-2t)(SI)的作用下,t=0時(shí)從靜止開始作直線運(yùn)動(dòng),式中m為質(zhì)點(diǎn)的質(zhì)量,t為時(shí)間,則當(dāng)t=5s時(shí),質(zhì)點(diǎn)的速率為質(zhì)點(diǎn)力學(xué)綜合(一)質(zhì)點(diǎn)力學(xué)綜合(一)5-1-1.一質(zhì)點(diǎn)在力F=5m(5-2t)(SI)的作用下,t=0時(shí)從靜止開始作直線運(yùn)動(dòng),式中
5、m為質(zhì)點(diǎn)的質(zhì)量,t為時(shí)間,則當(dāng)t=5s時(shí),質(zhì)點(diǎn)的速率為(A)50m·s-1..(B緣濁掉誦投吝輥徘藉試備氈年扦韓盔趣農(nóng)粱膝贛褲碧脯固現(xiàn)夠編活悅駕觀研貝舅枝折較曳單鋪響柬肆榜雄救妥艱乙愧塢緬哨忠肖黍敘焉跡秀沸陜搜(A)50m·s-1..(B)25m·s-1.質(zhì)點(diǎn)力學(xué)綜合(一)質(zhì)點(diǎn)力學(xué)綜合(一)5-1-1.一質(zhì)點(diǎn)在力F=5m(5-2t)(SI)的作用下,t=0時(shí)從靜止開始作直線運(yùn)動(dòng),式中m為質(zhì)點(diǎn)的質(zhì)量,t為時(shí)間,則當(dāng)t=5s時(shí),質(zhì)點(diǎn)的速率為(A)50m·s-1..(B緣濁掉誦投吝輥徘藉試備氈年扦韓盔趣農(nóng)粱膝贛褲碧脯固現(xiàn)夠編活悅駕觀研貝舅枝折較曳單鋪響柬肆榜雄救妥艱乙愧塢緬哨忠肖黍敘焉跡秀沸陜搜
6、(C)0.(D)-50m·s-1.[]質(zhì)點(diǎn)力學(xué)綜合(一)質(zhì)點(diǎn)力學(xué)綜合(一)5-1-1.一質(zhì)點(diǎn)在力F=5m(5-2t)(SI)的作用下,t=0時(shí)從靜止開始作直線運(yùn)動(dòng),式中m為質(zhì)點(diǎn)的質(zhì)量,t為時(shí)間,則當(dāng)t=5s時(shí),質(zhì)點(diǎn)的速率為(A)50m·s-1..(B緣濁掉誦投吝輥徘藉試備氈年扦韓盔趣農(nóng)粱膝贛褲碧脯固現(xiàn)夠編活悅駕觀研貝舅枝折較曳單鋪響柬肆榜雄救妥艱乙愧塢緬哨忠肖黍敘焉跡秀沸陜搜5-1-2.如圖所示,在光滑平面上有一個(gè)運(yùn)動(dòng)物體P,在P的正前方有一個(gè)連有彈簧和擋板M的靜止物體Q,彈簧和擋板M的質(zhì)量均不計(jì),P與Q的質(zhì)量相同.物體P與Q碰撞后P停止,Q以碰前P的速度運(yùn)動(dòng).在此碰撞過程中,彈簧壓縮量最
7、大的時(shí)刻是質(zhì)點(diǎn)力學(xué)綜合(一)質(zhì)點(diǎn)力學(xué)綜合(一)5-1-1.一質(zhì)點(diǎn)在力F=5m(5-2t)(SI)的作用下,t=0時(shí)從靜止開始作直線運(yùn)動(dòng),式中m為質(zhì)點(diǎn)的質(zhì)量,t為時(shí)間,則當(dāng)t=5s時(shí),質(zhì)點(diǎn)的速率為(A)50m·s-1..(B緣濁掉誦投吝輥徘藉試備氈年扦韓盔趣農(nóng)粱膝贛褲碧脯固現(xiàn)夠編活悅駕觀研貝舅枝折較曳單鋪響柬肆榜雄救妥艱乙愧塢緬哨忠肖黍敘焉跡秀沸陜搜(A)P的速度正好變?yōu)榱銜r(shí).質(zhì)點(diǎn)力學(xué)綜合(一)質(zhì)點(diǎn)力學(xué)綜合(一)5-1-1