then the third particle must also be moving.

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Which of the following is/ are correct ? (1) if the centre of three particles is at rtest and it is known that two of them are moving along different lines, then the third particle must also be moving.
21
Sep
Which of the following is/ are correct ? (1) if the centre of three particles is at rtest and it is known that two of them are moving along different lines, then the third particle must also be moving. then the third particle must also be moving. Which of the following is/ are correct ? [...]
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