[单选题]
A 0.300-kg mass, attached to the emv s.le did yn-*zd7x37 b0he2nd of a 0.750-m string, is whirle9i8w zsbip96id around in a smooth level table. If the maximum tension that the string can withstand is 250 N, then what maximum line8sii9wb9pz6 i ar speed can the mass have if the string is not to break?
Post time 2024-1-22 02:51:16