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The forces shown in the force vs. time diagram in the figure below act on a 1.8 kg particle. The vertical divisions on the graph represent 4.5 N and...

The forces shown in the force vs. time diagram in the figure below act on a 1.8 kg particle. The vertical divisions on the graph represent 4.5 N and the horizontal divisions represent 0.50 s.
(a) Find the impulse for the interval t = 0 to t = 1.5 s.
Enter a number.
1Your answer is incorrect.
Your response differs from the correct answer by 10% to 100%. N·s

(b) Find the impulse for the interval t = 0 to t = 2.5 s.
Enter a number.
2 N·s

(c) If the forces act on a 1.8 kg particle that is initially at rest, find the particle's speed at the following times.
1.5 s
Enter a number.
3 m/s
2.5 s
Enter a number.
4 m/s

This question was asked on Mar 16, 2010.

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