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attached to the end of a 1.00-m string and is swung in a circle.

a) If the stopper makes 0.85 rev/s, what is the force the string exerts on the stopper? (1pt)

b) If the rubber stopper is swung 2.3 m above the ground and released, how far will the     stopper travel horizontally before hitting the ground?(1pt)

A person on a ferry walks at a speed of 2.0 m/s. The ferry's velocity is 5.0 m/s north.

a) In which direction should the person walk to have the maximum possible speed relative to a person standing on the dock? What is this speed?(1pt)

b) In which direction should the person walk to have the smallest possible speed relative to a person standing still on the dock? What is this speed?(1pt)

1a. f c = 4 . 2 8 N 1b. d =... View the full answer

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