Can someone explain the steps for this ? a lovesick lad wants to throw a bag of candy and love notes into the open window of his girlfriend's bedroom above. assuming it just reaches the window, he throws the love gifts at 16.2 m/s and 60 degrees to the ground. how high up is the window?

h = 10.0 m

Explanation:

As we know that the initial velocity of the bag is 16.2 m/s at an angle of 60 degree

so here we have

now we know that the bag just reaches the window so here at the point when bag reaches to the window its vertical speed must be zero

so we have

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.