A Projectile Is Shot Horizontally at 23

question 86

Short Answer

A projectile is shot horizontally at 23.4 m/s from the roof of a building 55 m tall and
experiences negligible air resistance.
(a) Determine the time necessary for the projectile to reach the ground below.
(b) Determine the distance from the base of the building that the projectile lands.
(c) Determine the horizontal and vertical components of the velocity just before the
projectile reaches the ground.

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Definitions:

Bronchogram

A radiographic image of the bronchi, usually obtained after the airways have been filled with a contrast medium, for diagnostic purposes.

Air Passageways

The routes throughout the respiratory system, including the nose, throat, windpipe, and lungs, through which air is inhaled and exhaled.

Radioactive Chemical

A substance that contains unstable atoms which release radiation as they decay.

PET Scan

Positron Emission Tomography, a sophisticated imaging technique that uses radioactive substances to visualize and measure changes in metabolic processes and in other physiological activities including blood flow, regional chemical composition, and absorption.