1.角速度w=2π/T=2π/(365*24*60*60)(rad/s)
线速度V=w*r=2π/(365*24*60*60)*1.5x10^8*1000(m/s)
2.时针、分针、秒针三者角速度之比为,
w1:w2:w3=(1/T1):(1/T2)/(1/T3)
=(1/3600):(1/60):1=1:60:3600
线速度之比为,
V1:V2:V3=(w1*r1):(w2*r2):(w3*r3)
=1:90:5400.
1.角速度w=2π/T=2π/(365*24*60*60)(rad/s)
线速度V=w*r=2π/(365*24*60*60)*1.5x10^8*1000(m/s)
2.时针、分针、秒针三者角速度之比为,
w1:w2:w3=(1/T1):(1/T2)/(1/T3)
=(1/3600):(1/60):1=1:60:3600
线速度之比为,
V1:V2:V3=(w1*r1):(w2*r2):(w3*r3)
=1:90:5400.