Calculate the magnitude of the linear momentum for...

Calculate the magnitude of the linear momentum for thefollowing cases:
a) a proton with mass 1.67 x 10-27 kg, moving with a speed of 5.00 x106 m/s
b) a 15.0-g bullet moving with a speed of 300 m/s
c) a 75.0-kg sprinter running with a speed of 10.0 m/s
d) Earth (mass = 5.98 x 1024 kg) moving with anorbital speed equal to 2.98 x 104 m/s.

Answers ( 2 )

  1. neea erkkila
    neea erkkila

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

    a) a proton with mass 1.67 x 10-27 kg, moving with a speed of 5.00 x106 m/s
    p = 1.67 x 10-27 *5.00 x106 =8.35*10-21kg m/s
    b) a 15.0-g bullet moving with a speed of 300 m/s
    p = 15.0*10-3*300 = 4.5 kg m/s
  2. mar ortiz
    mar ortiz
    c) a 75.0-kg sprinter running with a speed of 10.0 m/s
    p = 75.0*10.0 = 750 kg m/s
    d) Earth (mass = 5.98 x 1024 kg) moving with anorbital speed equal to 2.98 x 104 m/s.
    p = 5.98 x 1024 *2.98 x 104 =1.78*1029 kg m/s

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