A Rock Is Moving with Speed V

question 17

Multiple Choice

A rock is moving with speed v.If the mass of the rock were tripled and the speed were reduced to v/3,which of the following statements would be true?

• A)The kinetic energy of the rock is smaller than in the first case,but the momentum is larger.
• B)The kinetic energy of the rock is smaller than in the first case,but the momenta of both are the same.
• C)The kinetic energies of the rocks are the same in both cases.
• D)The kinetic energy of the rock is 1/9 its previous value.

---

Definitions:

Intervention Hypotheses

Predictive statements about the expected outcomes of specific interventions or treatments in a research study or experiment.

Inoculation Theory

A theory that suggests exposure to a weakened form of an argument increases later resistance to that argument, similar to how exposure to a virus can stimulate an immune response.

Social Pressures

The influence exerted by society or a social group on an individual to conform to expected norms or behaviors.

Experimental Trials

Controlled tests conducted to study the efficacy or effects of a variable under study, often used in scientific and medical research.