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A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N.

a) What is the highest speed the rock can reach before the string breaks? (Neglect gravity.)

a)vmax=4.79 m/s

b) If two other strings identical to the first were attached to the rock, how fast could the rock be whirled before the three strings would break?

b)4.79*3^.5=8.3m/s

Next the rock is held by two of the same 45 cm strings with ends 57 cm apart and whirled in a circle between them. Neglect gravity.

c) What is the radius of the circle of motion?

d) Now what is the maximum speed the rock can have before the string breaks?

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Category:- Physics
Reference No.:- M91075814

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