A baseball is hit off of a tee. The bat stays in contact with the ball for 25 ms. The speed of the ball after contact is 50 m/s. Assuming constant acceleration, what is the average force exerted by the bat on the baseball, expressed in terms of the weight of the baseball w? A) 204w

B) 19,600w

C) 2000w

D) 0.2w

answer would be d.) i hope this

explanation:

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.