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+
+ 1 − 2 ∙
= =
( + )
+
1 + 1 − 2 ∙
= =
+
0.2 + 0.1
0.2 ∙ 20 ∙ 1 + 1 − 2 ∙ 5 ∙
0.2 ∙ 0.1 ∙ 20
= = 23.87 м/с.
0.2 + 0.1
+
1 + 1 − 2 ∙
= − =
+
+
⎛ 1 + 1 − 2 ∙ ⎞
⎜ ⎟
= ⎜ 1 − ⎟ =
⎜ + ⎟
⎝ ⎠
+
⎛ 1 + 1 − 2 ∙ ⎞
⎜ ⎟
= ⎜ 1 − ⎟ =
⎜ + ⎟
⎝ ⎠
0.2 + 0.1
1 + 1 − 2 ∙ 5 ∙
⎛ 0.2 ∙ 0.1 ∙ 20 ⎞
= 20 1 − 0.1 0.2 + 0.1 ⎟ = 8.06 м/с.
⎜
⎝ ⎠
76
