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Q. A stone with a mass of 0.800 is attached to one end of a string 0.700 long. The string will break if its tension exceeds 50.0 . The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed.Find the maximum speed the stone can attain without breaking the string.

Q. The minimum stopping distance for a car traveling at a speed of 30 {m/s} is 60 {m}, including the distance traveled during the driver's reaction time of 0.50 {s}.What is the minimum stopping distance for the same car traveling at a speed of 41 {m/s}?

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