Wavelength of bullet and proton, same momentum

[Cataklyzm]

Hi.

There's this question that was posed.
And I'm totally lost. If my professor explained how it's all derived it would've been useful.
Here we are:

A bullet and a proton have the same momentum. Which has the longer wavelength?

Any help?
Thanks,
Cataklyzm

 

[Hootenanny]

Tell me what you know about the de Broglie wavelength.

 

[Cataklyzm]

Ahh.. de Broglie's.. wavelength = h / momentum..
Because h is Planck's constant.. and momentum is constant in this example.
wavelength is constant.. So they both have the same wavelength.

Thanks.

 

[Hootenanny]

So they both have the same wavelength.
Thanks.

Glad to be of service