*An small toy water rocket has mass 2 kg and is moving upwards with 100 J of kinetic energy, calculate the speed of the rocket

Question

*An small toy water rocket has mass 2 kg and is moving upwards with 100 J of kinetic energy,
calculate the speed of the rocket

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Thiên Di 3 years 2021-08-30T13:50:15+00:00 1 Answers 11 views 0

Answers ( )

  1. thanhha
    0
    2021-08-30T13:51:19+00:00
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    Answer:

    speed= 0.32m/s

    Explanation:

    given

    mass=2kg

    kinetic energy=100J

    speed=?

    from

    KE=½mv²

    v²=2kE/m

    =√(2×100)/2000

    =√(200/2000)

    =√(1/10)

    =√0.1

    v =0.32m/s

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