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A point object hangs from a string 1.0 m long. This system is then rotated in a vertical plane so that the object moves in a uniform circle counterclockwise at a speed of 2 m/s. When the object is exactly halfway between points B and C, the string breaks. How many meters will the maximum height the object reach from point A (hA = 0)? Ignore air friction. Use the value g = 10 m/s^2 .
A. 1.81
B. 2.71
C. 1.73
D. 1.61
E. 2.21
Sagot :
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