A circular disc is rotating with constant ω=2 rad/sec, about an axis passing through its centre. An object is kept at a distance of ′r1=2cm′ from the centre and another object is kept at a distance of ′r2=1cm′. Find the ratio of their linear speeds.
v=rω
v1=r1ω=2×2=4cmsec
v2=r2ω=1×2=2cmsec
v1v2=42=2