Serway & Jewett — The Laws of Motion: Problem 7

Review. Three forces acting on an object are given by \(\vec{F}_1 = (-2.00 \hat{i} + 2.00 \hat{j})\text{ N}\), and \(\vec{F}_2 = (5.00 \hat{i} - 3.00 \hat{j})\text{ N}\), and \(\vec{F}_3 = (-45.0 \hat{i})\text{ N}\). The object experiences an acceleration of magnitude \(3.75\text{ m/s}^2\). (a) What is the direction of the acceleration? (b) What is the mass of the object? (c) If the object is initially at rest, what is its speed after \(10.0\text{ s}\)? (d) What are the velocity components of the object after \(10.0\text{ s}\)?