The number of instantaneous centers of velocity for a planar mechanism which has N links is
A、N(N-1)/2;
B、N(N-2)/2;
C、N(N-3)/2;
D、N(N-4)/2
发布时间:2025-08-23 05:39:48
A、N(N-1)/2;
B、N(N-2)/2;
C、N(N-3)/2;
D、N(N-4)/2