# Ch1 HW2 - WebAssign Ch1 HW2 2008(Homework Current Score 25...

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Ch1 HW2 2008 (Homework) Arthur Barfield PHYS 2211, section M, Fall 2008 Instructor: Jennifer Curtis Web Assign Current Score: 25 out of 25 Due: Tuesday, September 2, 2008 09:00 AM EDT Description Interactions; Newton's First Law; Average Velocity; Updating position. Reading : 1.1-1.7 Instructions Answer all questions carefully before submitting the assignment, then correct any errors that are reported. The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. [MI2 01.X.03] 1/1 points A spaceship far from all other objects uses its impulse power system to attain a speed of 10 4 m/s. The crew then shuts off the power. According to Newton's first law, what will happen to the motion of the spaceship from then on? (Select all that apply.) The spaceship will move in a straight line. The spaceship will gradually slow down. The speed of the spaceship will not change. The spaceship will stop suddenly. Solution or Explanation Because the spaceship is far from all other objects, its interactions are minimal. According to Newton's first law of motion, "An object moves in a straight line and at constant speed except to the extent that it interacts with other objects." Since there are negligible interactions, the spaceship will move in a straight line, and its speed will not change.

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2. [MI2e 1.X.3b]
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Ch1 HW2 - WebAssign Ch1 HW2 2008(Homework Current Score 25...

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