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)
2 answers:
Answer:
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.
Answer:
1.4 is correct i dont want any credit i just want everyone to know that the answer above it right
Step-by-step explanation:
i took a test and put 1.4 and it was right
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26 times 13 is equal to 338
Answer:
Total cost of boots = $56.02
Step-by-step explanation:
$59 x 0.90 = $53.10
$53.10 x 1.055 = $56.02
or
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59 - 5.9 = $53.10
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