A pendulum makes 50 complete swings in 2 min 40 second . what is time period for 1 complete swing?

Question

A pendulum makes 50 complete swings in 2 min 40 second . what is time period for 1 complete swing?

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Sigridomena 5 years 2021-07-17T15:02:34+00:00 1 Answers 87 views 0

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  1. haidang
    0
    2021-07-17T15:04:29+00:00
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    Answer:

    3.2 seconds

    Explanation:

    50 swings = 2 mins 40 secs

    = 50 swings = 2 x 60 + 40 secs

    = 50 swings = 160 secs

    = 1 swing = 160 / 50 secs

    = 1 swing -= 3.2 secs

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )