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July 4, 2015

Homework Help: physics

Posted by anonymous on Wednesday, March 3, 2010 at 5:51am.

Three forces acting on an object are given by F1 = ( - 1.85i + 2.50j) N, F2 = ( - 5.10i + 3.25j ) N, and
F3 = ( - 45.0i + 48.0j ) N. The object experiences an acceleration of magnitude 3.75 m/s2.

(a) What is the direction of the acceleration?
_________ (from the positive x axis)

(b) What is the mass of the object?
_________ kg

(c) If the object is initially at rest, what is its speed after 17.0 s?
_________ m/s

(d) What are the velocity components of the object after 17.0 s?
( ________ i + _________ j ) m/s

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