Review. Two constantforces act on an object of massm 5 5.00 kg moving in the xy plane as
Chapter 7, Problem 61(choose chapter or problem)
Review. Two constantforces act on an object of massm 5 5.00 kg moving in the xy plane as shown inFigure P7.61. Force FS1 is 25.0 N at 35.08, and force FS2 is42.0 N at 1508. At time t 5 0, the object is at the originand has velocity 14.00 i^ 1 2.50 j^ 2 m/s. (a) Express thetwo forces in unit-vector notation. Use unit-vector notationfor your other answers. (b) Find the total forceexerted on the object. (c) Find the objects acceleration.Now, considering the instant t 5 3.00 s, find (d) theobjects velocity, (e) itsposition, (f) its kineticenergy from 12mvf2, and(g) its kinetic energyfrom 12mvi2 1 g FS?DrS.(h) What conclusioncan you draw by comparingthe answers toparts (f) and (g)?
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