A 040-Kg Mass,attached to the End of a 0

Multiple Choice

A 0.40-kg mass,attached to the end of a 0.75-m string,is whirled around in a circular horizontal path.If the maximum tension that the string can withstand is 450 N,then what maximum speed can the mass have if the string is not to break?

A) 370 m/s
B) 22 m/s
C) 19 m/s
D) 29 m/s