The author posted a question in Homework
physics problem? and got a better answer
Response from Антон Владимирович[+++++]
Response from 0[+++++]
<img src=https://otvet.imgsmail.ru/download/21218421_6443214fe1f494f33e758b28be53ee01_800.jpg data-lsrc=//otvet.imgsmail.ru/download/21218421_6443214fe1f494f33e758b28be53ee01_120x120.jpg data-big=1>
<img src=https://otvet.imgsmail.ru/download/21218421_6443214fe1f494f33e758b28be53ee01_800.jpg data-lsrc=//otvet.imgsmail.ru/download/21218421_6443214fe1f494f33e758b28be53ee01_120x120.jpg data-big=1>