A hiker throws a stone from the upper edge of a vertical cliff. The stone's initial velocity is 25.0 m/s directed at 40.0° with the face of the cliff, as shown in the figure. The stone hits the ground 3.75 s after being thrown and feels no appreciable air resistance as it falls.
(a) What is the height of the cliff?
(b) How far from the foot of the cliff does the stone land?
(c) How fast is the stone moving just before it hits the ground? 
Definitions:
P-value
The probability of obtaining the observed results of a test, assuming the null hypothesis is true.
Sample Sizes
The number of observations or datapoints used in a sample for the purpose of statistical analysis.
Average Scores
The mean value obtained by dividing the sum of all scores by the number of scores.
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