A rock is dropped from the top of a vertical cliff and takes 4.89 s to reach the ground below the cliff. A second rock is thrown vertically from the cliff, and it takes this rock 2.05 s to reach the ground. With what velocity vo was the second rock thrown? Take "up" as the positive direction. VO = m/s Record your numerical answer below, assuming three significant figures.

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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A rock is dropped from the top of a vertical cliff and takes 4.89 s to reach
the ground below the cliff. A second rock is thrown vertically from the cliff,
and it takes this rock 2.05 s to reach the ground.
With what velocity vo was the second rock thrown? Take "up" as the
positive direction.
vo-
=
m/s
Record your numerical answer below, assuming three significant figures.
4
Transcribed Image Text:A rock is dropped from the top of a vertical cliff and takes 4.89 s to reach the ground below the cliff. A second rock is thrown vertically from the cliff, and it takes this rock 2.05 s to reach the ground. With what velocity vo was the second rock thrown? Take "up" as the positive direction. vo- = m/s Record your numerical answer below, assuming three significant figures. 4
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