Amy drops a ball from an initial height of 30 feet above the ground. after how many seconds with a ball reach the ground? roger answer to the nearest 10th of a second. (answer choices shown in picture)

Option 2. 1.4 seconds

Step-by-step explanation:

As we know when a ball is dropped from a height then we apply the formula

Here h = height from the ground

u = initial speed of the ball

t = time taken to reach the ground

g = acceleration due to gravity

Now we put the values of these parameters

h = 30 feet ≅ 9.144 met.

u = 0

g = 9.8 met/sec²

9.144 = 0 + 1/2×9.8×t²

9.144 = 4.9×t²

t² = 9.144÷4.9

t² = 1.87

t = 1.37 ≅ 1.4 seconds

Therefore option 2 is the answer.

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2