A.M=F*L
B.M=F/L
C.M=F*L^2
D.M=F^2*L
A.M=F*L
B.M=F/L
C.M=F*L^2
D.M=F^2*L
A.减半
B.不变
C.增加一倍
D.增加两倍
A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705384181035559.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705384181053404.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705384181081187.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705384181098481.png">
A.100mm
B.150mm
C.200mm
D.250mm
A.0
B.PL
C.-PL
D.P*L
A.250Nm
B.500Nm
C.750Nm
D.1000Nm
A.P/L
B.PL/2
C.PL
D.P/L^2
A.3kN·m
B.4.5kN·m
C.2.25kN·m
D.4.5kN·m
A.$rac{PL}{8}$
B.$rac{PL}{4}$
C.$rac{PL}{2}$
D.$PL$