Question

find out the wavelength of a track star running a 100 metre dash in 10.1 sec.
if its weight is 75kg.

Answer 1

The velocity of the star is 100/0.1 m/sec
Mass= 75 kg
So using momentum p = m v, you can calculate p
Now for stars, wavelength \[\lambda=h/p\] h is the plank's constant. this way you can solve for \[\lambda\]

Answer 2

thanks for the help