Question 78051: Science and medicine. Find the time required for an object to fall to the ground from a building that is 1400 ft high. (Use this formula The time in seconds that it takes for an object to fall from rest is given by t=1/4 √s in which s is the distance fallen.)This is suppose to be a radical sign √ but this is as close as I could get.
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! note: to write the radical sign  write sqrt(x) and surround it by three { curly brackets on both sides (use the other curly bracket } for the right side) Click "view source" to see what I'm talking about.
To find the time, simply plug in s=1400.
If we list all the factors of 1400 we get:
1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400
Notice the largest perfect square is 100, so rewrite 1400 as 100*14
 Rewrite the equation using 
 Reduce
 Multiply
 Reduce the fraction
So this is the exact time that it takes to fall. The approximate time is about 9.35414 seconds
|
|
|
