Answer
The wavelength of the skiing person is $\lambda=5.613\times10^{-37}m$.
Work Step by Step
*The de Broglie relationship: $$\lambda=\frac{h}{mv}$$
$\lambda$: wavelength of object
$h$: Planck's constant ($h=6.626\times10^{-34} J.s$)
$m$: mass of object
$v$: velocity of object
1) Find the known variables
- Mass of person: $m=85kg$
- Velocity of the person: $v=50km/h=5\times10^4m/h\approx13.889m/s$
2) Calculate the wavelength of the skiing person
$$\lambda=\frac{h}{mv}=\frac{6.626\times10^{-34}}{85\times13.889}\approx5.613\times10^{-37}m$$