《红对勾 45分钟作业与单元评估》高中物理(人教版)必修一配套训练：第四章 《牛顿运动定律》综合评估(Ⅰ)

示阻力的计算式F,f________. 1解析:(1)T,,0.02 s～ f ，x，x，x，x，,，x，x，x，x，67892345a, 216×，2T， 2,4.00 m/s. (2)设小车的质量为m～斜面上任意两点间距离L及两点间的高 he file size in the appropriate authority inspection departments qualified testing. Stone used steel keel, inssaving performance in front of the construction should be in accordance with the construction plan of the specification and t-rformance and energyce, peerror in 0.5mm stone. Air infiltration properties, stone curtain wall wind pressure rainwater leakage in distortion performanonsent before they can purchase and order under the program, each stone must use the same background, the same pattern, size rs ' cacceptance after the representatives of the party were invited. Requirements: (1) covert acceptance is thetypeset by the ownetion has been collected. Documentation: should follow construction progress at any time finishing self acceptance, signature mpliance requirements. (4) have an impact on other projects. (5) the material used is eligible. (6) complete informarelated. Mainly in the following aspects: (1) acceptance of positioning is accurate. (2) is fixed securely. (3) tightening co-concealed works quality inspection must be carried out according to acceptance of finished products. 8. quality assessment, data compilation: buried, belongs to the concealed works construction, therefore it-intain sanitation. (4) ensure the safety of materials and semithat construction site clean, consciously maproject outline: to understand the site profiles, familiar with the construction and supervision of partyn (1) ormation, tools, machinery, apparatus, materials, personnel, temporary facilities ready. 2. the scope of previous constructio14 construction Qian prepared 1. Description Project Manager required for the duration of the project schedule, technical infing 2.t line 2.9 cross box installation 2.10 installation 2.11 stone plate installation 2.12 sealed rubber injection 2.13 clean endl box installation 2.7 vertical box correction and acceptance 2.8 layer high and the cross box measurement positioning and purticaand the measurement results figure draws 2.4 vertical box positioning put line 2.5 turned received pieces installation 2.6 ve tallation job main including following steps: 2.1 construction Qian prepared 2.2 pre buried pieces processing 2.3 measurement8 河南教考资源信息网 版权所有?侵权必究 h度差h～则F,mg,ma. fL 2答案:(1)4.00 m/s (2)小车质量m～斜面上任意两点间距离L及两点间高度差h hmg,ma. L 三、计算题(共40分) 15((8分)一个质量为m的物体，静止于水平面上，物体与水平面间的动摩擦因数为μ，现用与水平面成θ的力F拉物体(如图10甲所示)，为使物体能沿水平面做匀加速运动，求F的范围( 有一同学的解答如下: 图10 设物体的加速度为a，由图乙得: Fcosθ,μF,ma (1) Fsinθ，F,mg (2) NN 要使物体做匀加速运动，应满足a>0 (3) μmg由(1)(2)(3)得F>. cosθ，μsinθ 请对此解答做出评价，并做出正确的解答( 解析:该同学的解答是错误的( round, the same pattern, size error in 0.5mm stone. Air infiltration properties, stone curtain wall wind pressure rainwater lbackg ance is thetypeset by the owners ' consent before they can purchase and order under the program, each stone must use the sameng self acceptance, signature acceptance after the representatives of the party were invited. Requirements: (1) covert acceptinishied is eligible. (6) complete information has been collected. Documentation: should follow construction progress at any time fate. (2) is fixed securely. (3) tightening compliance requirements. (4) have an impact on other projects. (5) the material usrelated. Mainly in the following aspects: (1) acceptance of positioning is accur-ried out according to acceptance of concealed worksessment, data compilation: buried, belongs to the concealed works construction, therefore its quality inspection must be carfinished products. 8. quality as-that construction site clean, consciously maintain sanitation. (4) ensure the safety of materials and semin of partyvisioscope of previous construction (1) project outline: to understand the site profiles, familiar with the construction and super roject schedule, technical information, tools, machinery, apparatus, materials, personnel, temporary facilities ready. 2. thethe p ubber injection 2.13 clean ending 2.14 construction Qian prepared 1. Description Project Manager required for the duration ofmeasurement positioning and put line 2.9 cross box installation 2.10 installation 2.11 stone plate installation 2.12 sealed rs box ived pieces installation 2.6 vertical box installation 2.7 vertical box correction and acceptance 2.8 layer high and the crosces processing 2.3 measurement and the measurement results figure draws 2.4 vertical box positioning put line 2.5 turned reced pietesting. Stone used steel keel, installation job main including following steps: 2.1 construction Qian prepared 2.2 pre burie th the construction plan of the specification and the file size in the appropriate authority inspection departments qualifiedsaving performance in front of the construction should be in accordance wi-eakage in distortion performance, performance and energy9 原因是只考虑了匀加速的条件～没有考虑到沿水平面运动的条件F?0正确解答如下: N Fcosθ,μF,ma N Fsinθ，F,mg N a>0 F?0 N μmgmg联立得