A bullet is shot straight up on top of a 110-foot hill. The initial speed was 130 ft/s. (a) What is the maximum height the bullet reached? (b) How many seconds did these bullet fly in the air before it hit the ground at the foot of the hill? (c) 7 seconds after bullet was released, how high was it in the air? (d)After how many seconds was the bullet 150 ft in the air?

A bullet is shot straight up on top of a 110-foot hill. The initial speed was 130 ft/s. (a) What is the maximum height the bullet reached? (b) How many seconds did these bullet fly in the air before it hit the ground at the foot of the hill? (c) 7 seconds after bullet was released, how high was it in the air? (d)After how many seconds was the bullet 150 ft in the air?

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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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

A bullet is shot straight up on top of a 110-foot hill. The initial speed was 130 ft/s. (a) What is the
maximum height the bullet reached? (b) How many seconds did these bullet fly in the air before it
hit the ground at the foot of the hill? (c) 7 seconds after bullet was released, how high was it in the
air? (d)After how many seconds was the bullet 150 ft in the air?

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Step 3: Finding the time of flight

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Step 4: Finding height reached in 7 second

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