The time taken by the rock will be 8.77 seconds.
<h3>What is speed?</h3>
Speed is defined as the ratio of the time distance traveled by the body to the time taken by the body to cover the distance.
Given that:-
The equation for free fall at the surface of some planet (s in meters, t in seconds) is s = 2.86t²
The time will be calculated by using the speed formula.
Speed = Distance \ Time
25.1 = 2.86t² \ t
t = 25.1 / 2.86
t = 8.77 seconds
Therefore the time taken by the rock will be 8.77 seconds.
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Answer:
Search this up on google to find out what the answer is because no one is going to know how to do it.
3y+14=44
Answer: First step is to subtract 14 from each side
3y = 30 (divide each side by 3)
y = 30/3, y = 10
1) In order to solve the equation n/6 = -11.9, you must
multiply by 6.
2)
![-9m = -45 \\ \\ m = \frac{-45}{-9} \\ \\ m = \frac{45}{9} \\ \\ m = 5 \\ \\ Answer: \fbox {m = 5}](https://tex.z-dn.net/?f=-9m%20%3D%20-45%20%5C%5C%20%5C%5C%20m%20%3D%20%20%5Cfrac%7B-45%7D%7B-9%7D%20%5C%5C%20%5C%5C%20m%20%3D%20%20%5Cfrac%7B45%7D%7B9%7D%20%5C%5C%20%5C%5C%20m%20%3D%205%20%5C%5C%20%5C%5C%20Answer%3A%20%5Cfbox%20%7Bm%20%3D%205%7D)
3)
![-14 = \frac{u}{8} \\ \\ -14 \times 8 = u \\ \\ -112 = u \\ \\ u = -112 \\ \\ Answer: \fbox {u = -112}](https://tex.z-dn.net/?f=-14%20%3D%20%20%5Cfrac%7Bu%7D%7B8%7D%20%5C%5C%20%5C%5C%20-14%20%5Ctimes%208%20%3D%20u%20%5C%5C%20%5C%5C%20-112%20%3D%20u%20%5C%5C%20%5C%5C%20u%20%3D%20-112%20%5C%5C%20%5C%5C%20Answer%3A%20%5Cfbox%20%7Bu%20%3D%20-112%7D%20)
4)
![-117 = -9h \\ \\ \frac{-117}{-9} = h \\ \\ \frac{117}{9} = h \\ \\ 13 = h \\ \\ h = 13 \\ \\ Answer: \fbox {h = 13}](https://tex.z-dn.net/?f=-117%20%3D%20-9h%20%5C%5C%20%5C%5C%20%20%5Cfrac%7B-117%7D%7B-9%7D%20%3D%20h%20%5C%5C%20%5C%5C%20%20%5Cfrac%7B117%7D%7B9%7D%20%3D%20h%20%5C%5C%20%5C%5C%2013%20%3D%20h%20%5C%5C%20%5C%5C%20h%20%3D%2013%20%5C%5C%20%5C%5C%20Answer%3A%20%5Cfbox%20%7Bh%20%3D%2013%7D)
5)