Respuesta :

momentum = massxspeed

mass = momentum/speed

52/0.8=520/8=65kg

Answer:

The mass of a person walking west at a speed of 0.8 m/s with a momentum of 52.0 kg•m/s west is 65 kg.

Explanation:

The linear momentum of a particle of mass m or body m that moves with a velocity v is defined as the product of mass by velocity

P = m * v

Where, as previously stated,

  • P = momentum
  • m is the mass of the body
  • v is the velocity.

The units in the SI (International System) are N*s ([tex]kg*\frac{m}{s}[/tex])

Then, the mass of a person, knowing the speed and momentum, can be calculated as:

[tex]m=\frac{P}{v}[/tex]

In this case=

[tex]m=\frac{52 kg*\frac{m}{s} }{0.8 \frac{m}{s} }[/tex]

m= 65 kg

Then, the mass of a person walking west at a speed of 0.8 m/s with a momentum of 52.0 kg•m/s west is 65 kg.