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Q. A particle is initially moving along the positive x-axis at a speed of 9.40 m/s. After 1.50 s, the particle is moving along the negative y-axis at a speed of 5.38 m/s. Find the x and y components of the particle's acceleration.

Q. A crate rests on the floor. How much work is required to move it at constant speed 6.5 m along the floor against a friction force of 173 N?

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