Two Billiard Balls Undergo a Glancing Collision

question 81

Multiple Choice

Two billiard balls undergo a glancing collision.Before the collision the first ball was travelling east at 2.6 m/s and the second ball was travelling west at 1.2 m/s.After the collision the second ball is deflected by +90 degrees travelling north at 1.47 m/s.Working in a coordinate system where +x direction is east and +y direction is north,what is the direction of the first ball after the collision?

• A)46.4º south of east
• B)43.6º south of east
• C)46.4º south of west
• D)43.6º south of west

Recognize the anatomy and physiology of the tracheobronchial tree, including the function of cilia and mucus in airway clearance.

Apply appropriate pulmonary care techniques to specific patient conditions based on clinical judgment and orders.

Demonstrate knowledge of proper positioning for patients during chest physiotherapy to facilitate secretion removal.

Understand the principles and procedures for performing postural drainage, percussion, and vibration in pulmonary care.

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