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A 0.26-kg rock is thrown vertically upward from the top of
Chapter 8, Problem 31P(choose chapter or problem)
Problem 31P
A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 29 m/s. Assuming that air resistance can be ignored, find (a) the initial speed of the rock and (b) the greatest height of the rock as measured from the base of the cliff.
Questions & Answers
QUESTION:
Problem 31P
A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 29 m/s. Assuming that air resistance can be ignored, find (a) the initial speed of the rock and (b) the greatest height of the rock as measured from the base of the cliff.
ANSWER:
Step 1 of 3
The mass of the rock is: .
The height of the cliff from the ground is: .
The final speed of the rock just before landing on the ground is: .