A rock thrown with speed 10.0 m/s and launch angle 30.0° (above the horizontal) travels a horizontal distance of d = 18.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s² for the free-fall acceleration.

University Physics Volume 1
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ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter4: Motion In Two And Three Dimensions
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A rock thrown with speed 10.0 m/s and launch angle 30.0° (above the
horizontal) travels a horizontal distance of d = 18.0 m before hitting the
ground. From what height was the rock thrown? Use the value g = 9.800
m/s² for the free-fall acceleration.
Transcribed Image Text:A rock thrown with speed 10.0 m/s and launch angle 30.0° (above the horizontal) travels a horizontal distance of d = 18.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s² for the free-fall acceleration.
Find the height y₁ from which the rock was launched.
Express your answer in meters to three significant figures.
Transcribed Image Text:Find the height y₁ from which the rock was launched. Express your answer in meters to three significant figures.
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