(1) During a rockburst (violent rock failure underground), a rock block was ejected as a projectile from the tunnel wall at a height of 1.5 m and the block landed on the floor at a distance of 2.5 m from the left wall. Determine the ejection velocity ve for 0 = 20°. 1.5 m 2.5 m

(1) During a rockburst (violent rock failure underground), a rock block was ejected as a projectile from the tunnel wall at a height of 1.5 m and the block landed on the floor at a distance of 2.5 m from the left wall. Determine the ejection velocity ve for 0 = 20°. 1.5 m 2.5 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

(1) During a rockburst (violent rock failure
underground), a rock block was ejected as a projectile
from the tunnel wall at a height of 1.5 m and the block
landed on the floor at a distance of 2.5 m from the left
wall. Determine the ejection velocity ve for 0 = 20°.
1.5 m
2.5 m

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