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30 January, 23:26

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to + 22 m/s during a time interval of 3.5 seconds. What impulse was delivered to the object? 3.0 N • s 11 N • s 25 N • s 56 N • s

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Answers (2)
  1. 30 January, 23:52
    0
    11 N • s is the answer on E2020.
  2. 31 January, 00:50
    0
    Impulse = mv-mu

    so, here mv = 1.5*22

    and mu = 1.5*15

    therefore, I = m (v-u)

    = 1.5 (22-15)

    = 1.5 * 7

    = 10.5 N
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