(2) Two forces F₁ = (36.0 N)i - (16.0 N)j and F2(x,y) = (ax)i + (by)j displace a 12.0 kg object from the point (10.0 m, 10.0 m) to the point (30.0 m, 40.0 m). The numerical values of a and b are 6.0 and 8.0 respectively when the units of F2(x,y) are Newtons. (a) What are the units of a and b? (b) Calculate the work done on the object by the net force (Fnet = F₁+F₂) acting on it. (answer: 8640 J) (c) If the object started from rest at (10.0 m, 10.0 m), what was its speed when it reached (30.0 m, 40.0 m)? (answer: 37.9 m/s)

(2) Two forces F₁ = (36.0 N)i - (16.0 N)j and F2(x,y) = (ax)i + (by)j displace a 12.0 kg object from the point (10.0 m, 10.0 m) to the point (30.0 m, 40.0 m). The numerical values of a and b are 6.0 and 8.0 respectively when the units of F2(x,y) are Newtons. (a) What are the units of a and b? (b) Calculate the work done on the object by the net force (Fnet = F₁+F₂) acting on it. (answer: 8640 J) (c) If the object started from rest at (10.0 m, 10.0 m), what was its speed when it reached (30.0 m, 40.0 m)? (answer: 37.9 m/s)

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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