contestada

3. If a 50-kg person is running at 2 m/s and a 25-kg person is running at twice
that speed, the 50-kg person is harder to stop.


A. The 50-kg person has more momentum.
B. The 25-kg person has more momentum.
C. The two people have the same momentum.
D. We cannot determine which one has more momentum.

Respuesta :

Answer:

The two people have the same momentum.

Explanation:

Given that,

Mass of person 1 is 50 kg and he is running at 2 m/s.

Mass of person 2 is 25 kg and he is running at twice  that speed i.e. 4 m/s

The momentum of an object is given by :

p = mv

For person 1,

[tex]p=50\times 2\\\\p=100\ kg-m/s[/tex]

For person 2,

[tex]p'=25\times 4\\\\p'=100\ kg-m/s[/tex]

So, it can be seen that both persons will have the same momentum. Hence, the correct option is (c).