Ch6-HW2-problems

# Ch6-HW2-problems - saliyev (is4663) – Ch6-HW2 – haley...

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Unformatted text preview: saliyev (is4663) – Ch6-HW2 – haley – (56465) 1 This print-out should have 19 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 4) 3.0 points An object at location (− 19 , , ) m moves to location (− 26 , , ) m. While it is moving it is acted on by a constant force of ( 20 , , ) N. How much work is done on the object by this force? Answer in units of J 002 (part 2 of 4) 3.0 points Does the kinetic energy of the object increase or decrease? 1. There is no change in the kinetic energy of the ball. 2. Increase 3. Decrease 003 (part 3 of 4) 2.0 points Now, consider a different object as it moves from location (− 26 , , ) m to location (− 19 , , ) m. While it is moving, it is acted on by a constant force of ( 20 , , ) N. How much work is done on the second object by this force? Answer in units of J 004 (part 4 of 4) 2.0 points Does the kinetic energy of the second object increase or decrease? 1. Decrease 2. There is no change in the kinetic energy of the ball. 3. Increase 005 (part 1 of 4) 3.0 points A ball of mass 0 . 9 kg falls downward. Initially, you observe it to be 5 . 75 m above the ground....
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## This note was uploaded on 02/21/2012 for the course M 408d taught by Professor Sadler during the Fall '07 term at University of Texas.

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Ch6-HW2-problems - saliyev (is4663) – Ch6-HW2 – haley...

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