A 0.50-kg toy is attached to the end of a 1.0-m very light
string. The toy is whirled in a horizontal circular path on a
frictionless tabletop. If the maximum speed the mass can have
without breaking the string is 30 m/s. What is the maximum tension
that the string can withstand without breaking?
A.450 N
B.400 N
C. 350 N
D. 300 N