a=Δs/T^2=(0.01-0.0075)/0.1^2=0.25m/s^2
Vb=(XAB+XBC)/2T=(0.01+0.0075)/2*0.1=0.0875m/s
Xcd=XBC+(XBC-XAB)=0.0125m
Vb/a=0.0875/0.25=0.35 0.35-0.1=0.25 =2*0.1+
4A球上面滚动的小球还有2个
a=Δs/T^2=(0.01-0.0075)/0.1^2=0.25m/s^2
Vb=(XAB+XBC)/2T=(0.01+0.0075)/2*0.1=0.0875m/s
Xcd=XBC+(XBC-XAB)=0.0125m
Vb/a=0.0875/0.25=0.35 0.35-0.1=0.25 =2*0.1+
4A球上面滚动的小球还有2个