Agolfer is on the edge of a 12.5 m bluff overlooking the 18th hole which is located 60 m from the base of the bluff. she launches a horizontal shot that lands in the hole on the fly. the gallery erupts in cheers.

The ball impact velocity i.e(velocity right before landing) is 6.359 m/s

Explanation:

This problem is related to parabolic motion and can be solved by the following equations:

----------------------(1)

---------(2)

----------------------- (3)

Where:

x = m is the horizontal distance travelled by the golf ball

is the golf ball's initial velocity

is the angle (it was  a horizontal shot)

t is the time

y is the final height of the ball

is the initial height of the ball

g is the acceleration due gravity

V is the final velocity of the ball

Step 1: finding t

Let use the equation(2)

s

Substituting (6) in (1):

-------------------(4)

Step 2:  Finding :

From equation(4)

m/s (8)  

Substituting in (3):

v =42 .01 - 15.3566  

V=26.359 m/s

mass and volume are the answers you are looking for

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.