Name P# Chapter 7 Problem Worksheet The following questions are either TRUE or F

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Name P# Chapter 7 Problem Worksheet The following questions are either TRUE or FALSE. Write which you think it f. 1) The work done by a variable force in moving an object between two points is equal to the area under the force versus displacement curve between those two points. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 2) If you push twice as hard against a stationary brick wall, the amount of work you do A) remains constant but non-zero. B) quadruples. C) doubles. D) is cut in half E) remains constant at zero. 3) A person carrles a mass of 10 kg and walks along the xaxis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person? A) 200 J B) 0J C) 1000 J D) 20 J E) None of the other cholces is correct. 4) Determine the angle between the directions of vector 1. .00. 1.00 and vector . 1.00. 3 E) 86.6 A) 36.9 B) 45.2 C) 53.1 D) 30.0

Explanation / Answer

1

Trure,Area under force displacement graph gives work.force may be variable or constant,in both case Area under force displacement graph gives WORK.

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