A stone is dropped into a well. t seconds later, a splash is heard. The acceleration due to gravity is g metres per second per second, and the speed of sound is c metres per second. Calculate the depth of the well and the downwards velocity with which the stone hits the water.
Line 1: The value of g (0 < g ≤ 1000)
Line 2: The value of c (0 < c ≤ 1000)
Line 3: The value of t (0 < t ≤ 1000)
Line 1: The depth of the well in metres.
Line 2: The speed of the stone as it hits the water, in metres per second.
9.80 334 3.41
Your answers must have a relative or absolute error of less than 0.01.
The following equations may be useful:
Here represent time, displacement, velocity, initial velocity, final velocity, and acceleration, respectively.
Point Value: 3
Time Limit: 2.00s
Memory Limit: 16M
Added: Jan 16, 2009
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