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Solved: (a) Calculate the height of a cliff if it takes
Chapter 2, Problem 47(choose chapter or problem)
(a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long would it take to reach the ground if it is thrown straight down with the same speed?
Questions & Answers
QUESTION:
(a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long would it take to reach the ground if it is thrown straight down with the same speed?
ANSWER:
Step 1 of 2
We need to calculate the height of the cliff and time taken by the rock to reach the ground.
(a)
Time
Initial velocity
We can calculate the height of the cliff from the equation
Substituting the values from above,
The height of the cliff is 8.26 m.