21. A 2-kg object is being pushed by a horizontal force F along a horizontal frictionless air-table. The object starts from rest at x 0 and the force F acting on it changes according to the force F v.s. position x graph. Find the work done by the force F on the object as the object moves from x-0 to x-9 m. 黑 FIN) X(m) 9. a. 48 J b. 36 J c. 72 J d. 24 J

21. A 2-kg object is being pushed by a horizontal force F along a horizontal frictionless air-table. The object starts from rest at x 0 and the force F acting on it changes according to the force F v.s. position x graph. Find the work done by the force F on the object as the object moves from x-0 to x-9 m. 黑 FIN) X(m) 9. a. 48 J b. 36 J c. 72 J d. 24 J

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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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Question

21. A 2-kg object is being pushed by a horizontal force F along a
horizontal frictionless air-table. The object starts from rest at x- 0
and the force F acting on it changes according to the force F v.s.
position x graph. Find the work done by the force F on the object as
the object moves from x-0 to x=9 m.
| FIN)
x (m)
9.
a. 48 J
b. 36 J
c. 72 J
d. 24 J

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