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Q. The minimum distance required to stop a car moving at 34.0 mi/h is 44.0 ft. What is the minimum stopping distance for the same car moving at 64.0 mi/h, assuming the same rate of acceleration?

Q. A 150g ball and a 250g ball are connected by a 34cm long, massless, rigid rod. The balls rotate about their center of mass at 130 . what is the speed of the ball of 150 g?

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