Physics
Senior High
請問這題該怎麼解,然後為什麽最高點時的速率不是零🥹🥹🥹
5)自地面以仰角30°射出一彈丸,當彈丸抵最高點時,其速率為49~3m/s,則知其水平射
程為
49√3
m,最大高度為
_m。(g=9.8m/s²)
30
Vx
V
~39~
~
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