一质量为1kg的质点,在力F=4.5+4x(N)的作用下作直线运动.已知t=rt在力F=4.5+4x(N)的作用下作直线运动。已知t=0时,x=0,v=0,问当x=4的速度
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 18:10:55
![一质量为1kg的质点,在力F=4.5+4x(N)的作用下作直线运动.已知t=rt在力F=4.5+4x(N)的作用下作直线运动。已知t=0时,x=0,v=0,问当x=4的速度](/uploads/image/z/5947290-18-0.jpg?t=%E4%B8%80%E8%B4%A8%E9%87%8F%E4%B8%BA1kg%E7%9A%84%E8%B4%A8%E7%82%B9%2C%E5%9C%A8%E5%8A%9BF%3D4.5%2B4x%28N%29%E7%9A%84%E4%BD%9C%E7%94%A8%E4%B8%8B%E4%BD%9C%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8.%E5%B7%B2%E7%9F%A5t%3Drt%E5%9C%A8%E5%8A%9BF%3D4.5%2B4x%28N%29%E7%9A%84%E4%BD%9C%E7%94%A8%E4%B8%8B%E4%BD%9C%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8%E3%80%82%E5%B7%B2%E7%9F%A5t%3D0%E6%97%B6%EF%BC%8Cx%3D0%2Cv%3D0%2C%E9%97%AE%E5%BD%93x%3D4%E7%9A%84%E9%80%9F%E5%BA%A6)
xU]KA+6nb/
RE4_
khb*661h+hD&O=3nbQ
Caνs?f249lTIaŨԔ7<^DUE 3=O{a2ZѨ"b.t?X[{TO`WZv=3ʖhL(tKۢS_CN?-OgUzn]/(Tiik頏D4J86YLe)¾y({HX
+WlXe5TC#uDwRqgT_gx[c]dRBtq%$ωρ[e$֘Eh7A 2Q{7=H7猻w1昰BuMl# :WWNjdvN/bOcP&"%[
%~1pů
ARnJ&N2hW±o=g;sW}d|O93wbv%?#VbǨ&*l_(-1
쮂
A1L*;O{JUm~{b