[질문] 내공의힘 과학2학년1학기 20쪽에서23쪽까지알려주세요

2,5,2,2,3:2,4,3&5,2,4,1,2,4,3,3,12.5m,5,5,5,1&2,1,2,4,2,4,(1)4배더큰힘가한다.(2)질량2배무겁게,운동?향나란하게일정힘작용,평균속12m/s,0+V/2+12m V=24m/s