A Ball Hits a Wall and Rebounds with the Same $\Delta$

question 1

Multiple Choice

A ball hits a wall and rebounds with the same speed, as diagrammed below. The changes in the components of the momentum of the ball are:

• A) \(\Delta\)p_x > 0, \(\Delta\)p_y > 0
• B)\(\Delta\)p_x < 0, \(\Delta\)p_y > 0
• C) \(\Delta\)p_x = 0, \(\Delta\)p_y > 0
• D) \(\Delta\)p_x = 0, \(\Delta\)p_y < 0
• E) \(\Delta\)p_x > 0, \(\Delta\)p_y < 0

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Definitions:

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Child

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The action of removing doubts or fears and restoring confidence in an individual, often through supportive words or gestures.