If a rock falls from a height of 43 meters on Earth, the height H (in meters) after x seconds is approximately Upper H (x) equals 43 minus 4.9 x squared. (a) What is the height of the rock when xequals1.6 seconds? The height of the rock when xequals1.6 seconds is nothing meters.

Question

Konnor Simpson

Mathematics

25 October, 00:34

If a rock falls from a height of 43 meters on Earth, the height H (in meters) after x seconds is approximately Upper H (x) equals 43 minus 4.9 x squared. (a) What is the height of the rock when xequals1.6 seconds? The height of the rock when xequals1.6 seconds is nothing meters.

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Answers (1)

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Piper · Answer 1

2.96 seconds

Step-by-step explanation:

Let H (x) = zero and solve for "x".

43 - 4.9x² = 0

4.9x²=43

x²=8.77

x=2.96

therefore, approximately when x=2.96seconds, the rock strike the ground.