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At a stunt show, an 80 kg motorcyclist goes around a vertical loop, which has a radius of 20 m. When the motorcyclist is at the top of the loop, as shown, he has a speed of 20 m/s. At this instant, what is the normal force on the cyclist?
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Jimmy is trying to synchronize two clocks on the roof of two buildings. The master clock is located at (x,y,z)=(0m, 0m, 80m), the slave clock is located at ( 200m, 300m, 30m). When the master clock ticks at t=0 s, it pro ...
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