Question

19. Find the sum of n terms of the following series
3
+
n
that S +5 = 167 and S = 23
72
12​

Answer 1

the depth of the well (in feet) and. : One method for determining the depth of a well is to drop a stone into it and then measure the time it takes until the splash is heard. If d is the depth of the well (in feet) and t1 the time (in seconds) it takes for the stone to fall, then d = 16t12, so t1 = √d/4.