A 004-Kg Ball Is Thrown from the Top of a 30-M

question 73

Multiple Choice

A 0.04-kg ball is thrown from the top of a 30-m tall building (point A) at an unknown angle above the horizontal. As shown in the figure, the ball attains a maximum height of 10 m above the top of the building before striking the ground at point B. If air resistance is negligible, what is the value of the kinetic energy of the ball at B minus the kinetic energy of the ball at A (K_B − K_A) ?

• A) 12 J
• B) −12 J
• C) 20 J
• D) −20 J
• E) 32 J

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Agriculture

The science, art, and practice of cultivating the soil, growing crops, and raising livestock for human use and consumption.

Municipalities

Local government entities that are responsible for providing basic services and governance within a specified geographic area or city.

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The process of extracting minerals, metals, and other valuable materials from the earth through various techniques.

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An interdisciplinary field focusing on sustainable industrial practices, aiming to reduce waste and efficiently use resources through ecosystem-inspired approaches.