Question

If a man has a mass of 74 kilograms runs 800 meters in 150 seconds, what is his average momentum?

Answer 1

Answer:
`394.66 (kg m)/(s)`

Step-by-step explanation:

Linear momentum
`p` is expressed as:

`p=mV`

Where:

`m=74 kg` is the mass of the man

`V=(d)/(t)` is the velocity of the man, which can be calculated if we know the distance he has run
`d=800 m` and the time it took to him to travel that distance
`t=150 s`

Hence:
`V=(800 m)/(150 s)=5.33 m/s`

Solving for the momentum:

`p=(74 kg)(5.33 m/s)`

`p=394.66 (kg.m)/(s)`