What is the ratio of the speeds of the boats

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Q. Speedboat A negotiates a curve whose radius is 120 m. Speedboat B negotiates a curve whose radius is 240 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of the boats.

Q. Two uncharged metal balls, X and Y, stands on a glass rods, are in touch with each other as shown to the left. A third ball Z carrying a negative charge, is brought near the first two. While the positions of these balls are fixed, ground the ball X and then break the grounding. While X and Y remain in touch, remove Z. Then separate X and Y. What are the charges (if any) on each of the balls?

Reference no: EM1352667

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