tay8568
27.10.2020 •
Mathematics
A boat with a horizontal tow rope pulls a water skier. She skis off to the side, so the rope makes an angle of 15° with the forward direction of motion. If the tension in the rope is 180 N, how much work does the rope do on the skier during a forward displacement of 300 m?
1.40 × 104 J
5.40 × 104 J
5.22 × 104 J
−5.22 × 104 J
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Ответ:
-9ab3a3b-52
Step-by-step explanation:
-8a3b+3a2b2-52+5a2b3a3b+7-9a2b2
-8a3b-6a-52+5a2b3a3b
-14a3b-52+5a2b3a3b
-9ab3a3b-52