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Q. A diving board of length 3 is supported at a point 1 from the end, and a diver weighing 470 stands at the free end. The diving board is of uniform cross section and weighs 255. What is the magnitude at support point?

Q. A car travelling east at 41.2 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 25 m/s in 3.90 s.

what is the magnitude and direction of car's acceleration as it slows down?

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