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SamTsui86
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Homework Statement
Johnny Jumper's favorite trick is to step out of his high-rise window and fall 56.0 m into a pool. A news reporter takes a picture of 70.0 kg Johnny just before he makes a splash, using an exposure time of 7.00 ms. Find the following.
(a) Johnny's de Broglie wavelength at this moment
Homework Equations
wavelength = h / (mv) v = x/t
The Attempt at a Solution
so I know figured out v which is just 56 m / .007 s = 8000 m/s
I know m = 70 kg
I plug it into the equation wavelength = (6.63e-34) / ((8000)(70)))
I got 1.18e-39 m. It saids I am wrong, please help