牛顿定理英文物理题You throw a ball of mass 1 kg straight up.You observe that it takes 3.2 s to go up and down,returning to your hand.Assuming we can neglect air resistance,the time it takes to go up to the top is half the total time,1.6 s.No
来源:学生作业帮助网 编辑:作业帮 时间:2024/12/02 04:05:49
xT]SV+gow펝;m7ݙt&B$I$^OuEEYQq U\Oi9ɕ:M[~9'_][[d3M3QO!K6)$q1@REDh2LlTR`)?K!ZH%NJ&BA&t!Z)-dHV-|z@2oL32딄4)E%CEu'bBANhXxL;=