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If it takes 10 seconds for a stone to fall in a shaft how deep is the shaft?
Wiki User
∙ 11y ago
You use the equation d = vit + 1/2at2, where d is distance or displacement, vi is initial velocity (0), t is time, and a is acceleration.
d = (0)(10s) + (1/2)(9.8m/s2)(10s)2 = 0 + 490m = 490m
The answer above does not take into account air friction or the possibility that the rock will hit the walls of the shaft and slow down due to that friction.
Air friction will shorten the distance by perhaps 15% to 30% depending, among other things on the shape and mass of the rock, retardation due to hitting the shaft walls is unpredictable.
Wiki User
∙ 11y ago
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A student drops a stone into a mine shaft It takes 3 seconds for the stone to hit the bottom of the shaft How deep is the mine?
90m
If it takes 6 seconds for a stone to fall to the bottom of the mine how deep is the mine?
about 180 m
If you drop a stone into a well that is 118.5 m deep how soon after you drop the stone will you hear it hit the bottom of the well?
About 5.26 seconds. (almost 4.92 seconds to hit, 0.35 sec for the sound to return)You need to find how long it takes for the stone to drop to the water and makean audible 'sploosh', and then find how long it takes for the sound to reach youfrom the depths. The acceleration g is about 9.8 m/sec2.Time to sploosh:x = 1/2 g T2118.5 = 4.9 T2T = sqrt(118.5/4.9) secondsTime for the sound to return to the top: (Use 340 meters per second)118.5/340 secondsTotal time between the drop and hearing the sploosh:sqrt(118.5/4.9) + (118.5/340 ) = 5.26 seconds(rounded)
How do you predict how fast an object will fall?
Easy! the formula is Gravity x Time(seconds) = Acceleration, gravity pull is basically 9.8m/s^2 (im not sure how to put squared so i used "^2" to symbolize it) and so basically if you drop a rock on a cliff count how many seconds it takes before it hits the ground, lets say that the rock took 8.5 seconds to hit the ground so you use the gravity pull and times it by the seconds which would be 8.5s x 9.8m/s^2= it is 83.3 meters deep
A spelunker drops a stone from rest into a hole The speed of sound is 343 ms in air and the sound of the stone striking the bottom is heard 5.71 s after the stone is dropped How deep is the hole?
343m/s x 5.71s = 1958.53m, less the distance from the level of the hole's opening to the spelunder's ear.
A student drops a stone into a mine shaft It takes 3 seconds for the stone to hit the bottom of the shaft How deep is the mine?
90m
If it takes 6 seconds for a stone to fall to the bottom of the mine how deep is the mine?
about 180 m
It takes 6 s for a stone to fall to the bottom of a mine shaft. How deep is the shaft?
Ignoring air resistance, or bouncing off the sides of the shaft on the way down ...-- Speed when you let it go = 0-- Speed after 6 seconds = 6 G = 58.84 meters per second-- Average speed = 1/2 (0 + 58.84) = 29.42 meters per second-- In 6 seconds, at an average speed of 29.42 meters per second,it fell 176.5 meters.
It took 17.89 seconds for a rock to hit the bottom of the canyon how deep is the canyon?
It takes 175,32 seconds
If a rock takes 6 seconds to hit the bottom of a HOLE how far is the bottom?
about five metres deep
What is a sentence for shaft?
The mine shaft was over 500 feet deep. The shaft of the wagon was broken.
What is a deep shaft mine?
a thing
How deep is a normal mine shaft?
80 to 100 foot deep
What is deep shaft mining?
Deep Shaft Mining is two tunnels going deep underground, on tunnel for the miners to come up and down and the other for the coal to be lifted up to the ground.
What is a tomb shaft?
A shaft tomb or shaft grave is a type of burial structure formed from a deep and narrow shaft sunk into natural rock. Burials were then placed at the bottom!!!!!
What is the name of a deep hole dug for mining?
shaft
Which stone not deep in water?
The stone name is never deep in water hajra aswad this stone come from heaven and present in saudia arabia
