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son4ous [18]
3 years ago
11

Which one????? I'll mark brainlest​

Physics
2 answers:
Trava [24]3 years ago
5 0

Answer:

a

Explanation:

because it is balanced and it is 40

slavikrds [6]3 years ago
3 0
20 and Balanced because they move in opposite directions so 30-10
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