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1AcQuiz2

# 1AcQuiz2 - Physics 1A(c Fall 2006 Quiz 2 Version D 1 Closed...

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Physics 1A (c) Fall 2006: Quiz 2 Version D 1 09.29.06 Closed book. No work needs to be shown for multiple-choice questions. 1 . Find the resultant of the following two vectors: i ) 50 units due east and ii ) 100 units 30 ° north of west. a. 100 units 30 ° north of west b. 62 units 54 ° north of west c. 87 units 60 ° north of west d. 62 units 15 ° north of west 2 . If we know an object is moving at constant velocity, we may assume: a. there are no forces acting on the object. b. the net force acting on the object is zero. c. the object is accelerating. d. the object is losing mass. 3 . A cannonball is shot from a cannon at an angle of 30 o above the horizontal. Which of the following choices is correct concerning the resulting velocity of the projectile motion? a. The velocity is zero at the top of its path. b. The velocity is a minimum at the top of its path. c. The velocity is a maximum at the top of its path. d. The velocity is 9.8 m/s at the top of its path.

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1AcQuiz2 - Physics 1A(c Fall 2006 Quiz 2 Version D 1 Closed...

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