The next three questions, Questions 2 - 4, relate to a cannon ball and a marble that are dropped from the same height at the same time. Both are originally at rest. Ignore air friction. How do the speed and acceleration of the cannonball compare with those of the marble at any given time after they are dropped? Select one:

A. a. The speed and acceleration of the cannonball are both greater than those of the marble.

B. b. The speed and acceleration of the cannonball are both smaller than those of the marble.

C. c. The speed and acceleration of the cannonball are both the same as those of the marble.

D. d. The speed of the cannonball is the same, but the acceleration is larger.

E. e. The acceleration of the cannonball

Question

Physics

Juliette Levy

11 November, 19:34

The next three questions, Questions 2 - 4, relate to a cannon ball and a marble that are dropped from the same height at the same time. Both are originally at rest. Ignore air friction. How do the speed and acceleration of the cannonball compare with those of the marble at any given time after they are dropped? Select one:

A. a. The speed and acceleration of the cannonball are both greater than those of the marble.

B. b. The speed and acceleration of the cannonball are both smaller than those of the marble.

C. c. The speed and acceleration of the cannonball are both the same as those of the marble.

D. d. The speed of the cannonball is the same, but the acceleration is larger.

E. e. The acceleration of the cannonball

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Answers (1)

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Hurley · Answer 1

The correct answer is C: The speed and acceleration of the cannonball are both the same as those of the marble.

Explanation:

Physical properties are categorized as intensive or extensive, according to how the property changes when the size of the system changes. An intensive quantity is one whose magnitude is independent of the size of the system.

Speed and acceleration are intensive properties.