A track is being designed so that a car can go at 50. m/s around a 100.
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A track is being designed so that a car can go at 50. m/s around a 100. m radius curve without needing to turn the wheels. At what angle must the track be banked with respect to the horizontal so the normal force can counter both the weight of a car and the centripetal force?(The numbers in front of the decimal point are significant.)
The term for mile (1600 meters) comes from the idea that a mile could be done in 1000 steps. A stride is one step. What would the stride length (in meters) of a roman soldier have needed to be?
A marble lands 2.1 m away from a 1.8 m tall table. How fast did it roll off of the table?
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