What is the speed of the ball

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Q. A 150g ball and a 250g ball are connected by a 35cm long, massless, rigid rod. The balls rotate about their center of mass at 150g . What is the speed of the 150g ball?

Q. A stone is dropped from the roof of a building; 2.10s after that a second stone is thrown straight down with an initial speed of 18.0m/s, and both stones hit the ground at the same time. How long did it take for the first stone to hit the ground?

Reference no: EM1347804

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