An Object That Is Initially at Rest Breaks Up into Two

question 91

Multiple Choice

An object that is initially at rest breaks up into two pieces of unequal masses when a spring-loaded device is released. If you compare the kinetic energy of the larger mass to that of the smaller mass immediately after they separate, which of the following statements is correct?

• A) The kinetic energy of the larger mass is greater.
• B) The kinetic energy of the smaller mass is greater.
• C) The kinetic energies of the two masses are equal.
• D) The total kinetic energy is zero J.

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Definitions:

Oil Shale

A fine-grained sedimentary rock containing organic matter, known as kerogen, that can be converted into oil through heating.

Oil and Gas

Naturally occurring hydrocarbons found in geological formations beneath the Earth's surface, used as fuel and in chemical production.

Coal

A combustible black or brownish-black sedimentary rock formed from plant remains, primarily consisting of carbon and used as a fossil fuel.

Granitic Intrusion

The forced entry of magma composed mainly of quartz and feldspar into surrounding rock, cooling and solidifying to form granite.