Agolf ball is struck at 30 degrees above the horizontal with a velocity of 45m/s. how far horizontally will the ball travel? the answer is 180m, but i don’t know how to get that answer.

The ball's horizontal position and vertical position at time are given by

where , , and . The ball reaches the ground when at

(we don't care about )

At this time, the ball's horizontal position is

which you might recognize as the range formula. With the known parameters, the ball thus traverses a range of

answer: 0.20

explanation: this can only be the answew because all the other measuremnets are not close

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).