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Physics / Physics: Principles with Applications 7 / Chapter 2 / Problem 7MCQ

Physics: Principles with Applications | 7th Edition | ISBN: 9780321625922 | Authors: Douglas C. Giancoli

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A ball is dropped from the top of a tall building. At the

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QUESTION:

A ball is dropped from the top of a tall building. At the same instant, a second ball is thrown upward from the ground level. When the two balls pass one another, one on the way up, the other on the way down, compare the magnitudes of their acceleration:

(a) The acceleration of the dropped ball is greater.

(b) The acceleration of the ball thrown upward is greater.

(c) The acceleration of both balls is the same.

(d) The acceleration changes during the motion, so you cannot predict the exact value when the two balls pass each other.

(e) The accelerations are in opposite directions.

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QUESTION:

A ball is dropped from the top of a tall building. At the same instant, a second ball is thrown upward from the ground level. When the two balls pass one another, one on the way up, the other on the way down, compare the magnitudes of their acceleration:

(a) The acceleration of the dropped ball is greater.

(b) The acceleration of the ball thrown upward is greater.

(c) The acceleration of both balls is the same.

(d) The acceleration changes during the motion, so you cannot predict the exact value when the two balls pass each other.

(e) The accelerations are in opposite directions.

ANSWER:

Step 1 of 2

When a =n object is in freefall, it is under the influence of gravity. The acceleration of the object is constant and equal to acceleration due to gravity.

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