Answer:
It will take 6 seconds for the ball to reach the ground.
Velocity:
.
Step-by-step explanation:
We have been given that a ball dropped from the top of a building has a height of
meters after t seconds.
The ball will hit the ground, when height will be 0 meters, so we will equate height with 0 as:

Let us solve for t.




Taking positive square root of both sides, we will get:


Therefore, it will take 6 seconds for the ball to reach the ground.
To find the ball's velocity at
, we will take the derivative of position function and evaluate derivative at
.





Therefore, the ball's velocity at the moment of impact would be
.
Answer:
28 Inches
Step-by-step explanation:
10 ft x 12 = 120 inches
120/2 is 60 inches to the center of the wall
28+28+8 = 64 in measure of the frames and the space between them
64 / 2 = 32 in measure from center of both paintings and the 8 in requirement
60 in - 32 in = 28 in is the measurement from the wall to the outer diameter of the paintings
Answer: I know the answer but......
Explanation: Study hard so you can answer those questions
24 hurry is that one in my but
I think its B cause it make more sence to analyze the two groups and calculate the diffrence