Two Identical Balls Are at Rest and Side by Side

question 54

Multiple Choice

Two identical balls are at rest and side by side at the top of a hill. You let one ball, A, start rolling down the hill. A little later you start the second ball, B, down the hill by giving it a shove. The second ball rolls down the hill along a line parallel to the path of the first ball and passes it. At the instant ball B passes ball A:

• A) it has the same position and the same velocity as A.
• B) it has the same position and the same acceleration as A.
• C) it has the same velocity and the same acceleration as A.
• D) it has the same displacement and the same velocity as A.
• E) it has the same position, displacement and velocity as A.

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Definitions:

Converging Plates

The movement of two tectonic plates towards each other, often leading to geological features like mountains, earthquakes, and volcanoes.

Seafloor Spreading

The process by which new oceanic crust is formed at mid-ocean ridges and slowly moves away from them, caused by the divergence of tectonic plates.

Rifting

The process of the Earth's crust being pulled apart, leading to the formation of rift valleys and, eventually, new ocean basins.

Hurricane Sandy

A tropical cyclone that hit the Caribbean and United States in October 2012, causing widespread destruction and flooding, particularly in New York and New Jersey.