At Target Practice, a Rifle Bullet Is Fired at an Angle

question 72

Short Answer

At target practice, a rifle bullet is fired at an angle of 30° below the horizontal with an initial velocity of 800 m/s from the top of a cliff 80 m high. How far from the base of the cliff does it strike the level ground below if air resistance is negligible?

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Definitions:

Proteins

Large molecules essential for the structure, function, and regulation of the body's tissues and organs, made up of amino acids.

Nucleus

The central part of an atom containing protons and neutrons, or a membrane-enclosed organelle found in eukaryotic cells that contains the genetic material.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA).

Cell

The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.