The Rate of Gravity, the Acceleration of an Object in Freefall

question 110

Multiple Choice

The rate of gravity, the acceleration of an object in freefall, is approximately 10 m/s² A ball takes 5 seconds to reach the ground when dropped off a building. If the ball begins the fall with 0 velocity, how fast is the ball moving when it reaches the ground?

• A)-50 m/s
• B)50 m/s
• C)-2 m/s
• D)2 m/s

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Definitions:

Steep Pillars

Tall, vertical rock formations resulting from the erosion of surrounding softer material, often seen in high-gradient areas.

Tropical

Relating to or characteristic of the tropics, typically hot and humid climate zones between the Tropic of Cancer and the Tropic of Capricorn.

Cave

A natural underground chamber, generally large enough for a person to enter.

Dissolution

The process of a solid substance becoming incorporated into a liquid to form a solution.