24.如圖所示.一質(zhì)量M=0.2kg的長(zhǎng)木板靜止在光滑的水平地面上.另一質(zhì)量m=0.2kg的小滑塊.以v0=1.2m/s的速度從長(zhǎng)木板的左端滑上長(zhǎng)木板.已知小滑塊與長(zhǎng)木板間的動(dòng)摩擦因數(shù)μ1=0.4. g=10m/s2, 問(wèn): (1)經(jīng)過(guò)多少時(shí)間小滑塊與長(zhǎng)木板速度相等? (2)從小滑塊滑上長(zhǎng)木板.到小滑塊與長(zhǎng)木板相對(duì)靜止.小滑塊運(yùn)動(dòng)的距離為多少?(滑塊始終沒(méi)有滑離長(zhǎng)木板) 查看更多

 

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如圖所示,一質(zhì)量M=0.2kg的長(zhǎng)木板靜止在光滑的水平地面上,另一質(zhì)量m=0.2kg的小滑塊,以V0=1.2m/s的速度從長(zhǎng)木板的左端滑上長(zhǎng)木板.已知小滑塊與長(zhǎng)木板間的動(dòng)摩擦因數(shù)μ=0.4,g=10m/s2,問(wèn):
(1)經(jīng)過(guò)多少時(shí)間小滑塊與長(zhǎng)木板速度相等?
(2)從小滑塊滑上長(zhǎng)木板,到小滑塊與長(zhǎng)木板相對(duì)靜止,小滑塊運(yùn)動(dòng)的距離為多少?(滑塊始終沒(méi)有滑離長(zhǎng)木板)

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如圖所示,一質(zhì)量M=0.2kg的長(zhǎng)木板靜止在水平面上,長(zhǎng)木板與水平面間的動(dòng)摩擦因數(shù)μ1=0.1,一質(zhì)量m=0.2kg小滑塊以v0=1.2m/s的速度從長(zhǎng)木板的左端滑上長(zhǎng)木板,小滑塊與長(zhǎng)木板間的動(dòng)摩擦因數(shù)μ2=0.4.問(wèn):

(1)經(jīng)過(guò)多少時(shí)間小滑塊與長(zhǎng)木板速度相等?
(2)從小滑塊滑上長(zhǎng)木板到最后靜止下來(lái)的過(guò)程中,小滑塊運(yùn)動(dòng)的距離為多少?(滑塊始終沒(méi)有滑離長(zhǎng)木板)
(3)小滑塊與木板間因摩擦而產(chǎn)生的熱量為多少?

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如圖所示,一質(zhì)量M=0.2kg的長(zhǎng)木板靜止在光滑的水平地面上,另一質(zhì)量m=0.2kg的小滑塊,以V0=1.2m/s的速度從長(zhǎng)木板的左端滑上長(zhǎng)木板。已知小滑塊與長(zhǎng)木板間的動(dòng)摩擦因數(shù)μ=0.4,( g=10m/s2)問(wèn):

   (1)經(jīng)過(guò)多少時(shí)間小滑塊與長(zhǎng)木板速度相等?

   (2)從小滑塊滑上長(zhǎng)木板,到小滑塊與長(zhǎng)木板相對(duì)靜止,小滑塊運(yùn)動(dòng)的距離為多少?(滑塊始終沒(méi)有滑離長(zhǎng)木板)

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如圖所示,一質(zhì)量M=0.2kg的長(zhǎng)木板靜止在光滑的水平地面上,另一質(zhì)量m=0.2kg的小滑塊,以V0=1.2m/s的速度從長(zhǎng)木板的左端滑上長(zhǎng)木板。已知小滑塊與長(zhǎng)木板間的動(dòng)摩擦因數(shù)μ=0.4,( g=10m/s2)問(wèn):

   (1)經(jīng)過(guò)多少時(shí)間小滑塊與長(zhǎng)木板速度相等?

   (2)從小滑塊滑上長(zhǎng)木板,到小滑塊與長(zhǎng)木板相對(duì)靜止,小滑塊運(yùn)動(dòng)的距離為多少?(滑塊始終沒(méi)有滑離長(zhǎng)木板)

 

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如圖所示,一質(zhì)量M=0.2kg的長(zhǎng)木板靜止在光滑的水平地面上,另一質(zhì)量m=0.2kg的小滑塊,以V0=1.2m/s的速度從長(zhǎng)木板的左端滑上長(zhǎng)木板。已知小滑塊與長(zhǎng)木板間的動(dòng)摩擦因數(shù)μ=0.4,( g=10m/s2)問(wèn):

   (1)經(jīng)過(guò)多少時(shí)間小滑塊與長(zhǎng)木板速度相等?

   (2)從小滑塊滑上長(zhǎng)木板,到小滑塊與長(zhǎng)木板相對(duì)靜止,小滑塊運(yùn)動(dòng)的距離為多少?(滑塊始終沒(méi)有滑離長(zhǎng)木板)

 

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