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?