Calculate the mechanical energy of the child at position 1, position 2, and on position 3 and its total mechanical energy of the boy. If the boy has a mass of 45 kg, where the velocity of the boy at position 2 is 5.6 m/s with the height of 1 m and at position 3 is 8.5 m/s with the height of 2.8 m. I SWEAR TO GOD IF YOU DON'T ANSWER IT PROPERLY

PLS ANSWER PROPERLY TO BE BRAINLIEST ❤️❤️❤️

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m