Mathematics
Senior High
Solved
画像のなぜ30°と書いてあるところが何故30°になるのか教えてください、、、
■ 66. 斜面上の物体 次の力(重力
用いて求めよ。
(1)
x:
x
130° 80N
なぜ300?
y
y:
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