TVET Professional Subjects
Senior High
Resolved
斜拋題目
V0=39.2m/s
h=49m
t=2s
DA
)
No - 59.1
3. 在高度為49 公尺之塔頂,以39.2 公尺秒
之初速度水平拋出一石子,經2秒後,其
关于大力
水平速度之大小為何?
(A)9.8公尺/秒(B)19.6 公尺/秒
(C)29.4 公尺/秒(D)39.2 公尺/秒。
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