The force shown in the force vs. time diagram in the figure below acts on a 1.8-kg object. F (N) 1 t (s) 1 2 3 4 (a) Find the impulse of the force. (b) Find the final velocity of the object if it is initially at rest. m/s (c) Find the final velocity of the object if it is initially moving along the x-axis with a velocity of -1.5 m/s. m/s

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