45. Review. Two constant forces act on an object of mass m =QC 5.00 kg moving in the xy plane as shown in Figure P7.45.Force F, is 25.0 N at 35.0°, and force F, is 42.0 N at 150°.At time t = 0, the object is at the origin and has velocity(4.00i2.50j m/s. (a) Express the two forces in unit-vectorother answersnotation. Use unit-vector notation foryour(b) Find the total force exerted on the object. (c) Find theobject's acceleration. Now, considering the instant t = 3.00 sfind(d)velocity, (e) its position(f) its kinetic energyfrom m and (g) itstheobject'skineticfrom1500energym .T. (h) Whatconclusion can you35.00drawxmby comparing the answersto parts (f) and (g)?Figure P7.45

Answered: 45. Review. Two constant forces act on…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 38P: Two blocks are connected by a light string that passes over a frictionless pulley as in Figure...

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