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2. A 2 kg object is moving at a speed of 3 m/s. A 4 N force is applied in the direction of the motion and then removed after the object has traveled an additional 5 m. The work done by the force is: A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J

2. A 2 kg object is moving at a speed of 3 m/s. A 4 N force is applied in the direction of the motion and then removed after the object has traveled an additional 5 m. The work done by the force is: A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Problem Statement:** A 2 kg object is moving at a speed of 3 m/s. A 4 N force is applied in the direction of the motion and then removed after the object has traveled an additional 5 meters. The work done by the force is: **Options:** A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J **Explanation:** To calculate the work done by the force, we use the formula for work: \[ \text{Work} = \text{Force} \times \text{Distance} \] Here, the force applied is 4 N and the distance over which the force is applied is 5 m. \[ \text{Work} = 4 \, \text{N} \times 5 \, \text{m} = 20 \, \text{J} \] Thus, the correct answer is D. 20 J.
Transcribed Image Text:**Problem Statement:** A 2 kg object is moving at a speed of 3 m/s. A 4 N force is applied in the direction of the motion and then removed after the object has traveled an additional 5 meters. The work done by the force is: **Options:** A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J **Explanation:** To calculate the work done by the force, we use the formula for work: \[ \text{Work} = \text{Force} \times \text{Distance} \] Here, the force applied is 4 N and the distance over which the force is applied is 5 m. \[ \text{Work} = 4 \, \text{N} \times 5 \, \text{m} = 20 \, \text{J} \] Thus, the correct answer is D. 20 J.
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