A runner accelerates to a velocity of 4.15 ms due west in, Ask an Expert

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Q. A runner accelerates to a velocity of 4.15m/s due west in 1.50s. His average acceleration is 0.640 m/s^2, also directed due west. What was his velocity when he began accelerating?

Q. A person applies a constant force on an object of mass 20kg that causes the object to move horizontally at a constant speed of .20m/s through a distance of .80m. What is the work done on the object?

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