The equation for momentum is p = mv, where p is momentum, m is mass, and v is velocity. The units for momentum are kg•m/s.

Question

The equation for momentum is p = mv, where p is momentum, m is mass, and v
is velocity. The units for momentum are kg•m/s.

a. What is the momentum of an object that has a mass of 2 kg and a velocity of
14 m/s? (2 points)

b. What is the mass of an object that has a momentum of 35 kg•m/s and a
velocity of 3 m/s? (2 points)

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Yến Oanh 4 years 2021-08-22T06:46:05+00:00 1 Answers 85 views 0

Answers ( )

  1. thienan
    0
    2021-08-22T06:47:31+00:00
    Reply

    Answer:

    p = mv, where p is momentum, m is mass, and v is velocity.

    a. ) m = 12kg v = 14m/s

    Momentum (p) = mv

    = 12kg × 14m/s

    = 168kg•m/s

    b.) momentum (p) = 35 kg•m/s

    velocity = 3m/s

    p = mv

    make m the subject

    divide both sides by v

    we get

    m = p/v

    Therefore m is

    m = 35 kg•m/s / 3m/s

    m = 11.67kg

    Therefore the mass of the object is 11.67kg

    Hope this helps

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