What is the linear velocity of a person at equator of the earth due to its spinning motion? (Radius of the earth = 6400 km.)

What is the linear velocity of a person at equator of the earth due to

1.	What is the linear velocity of a person at equator of the earth due to its spinning motion? (Radius of the earth = 6400 km.)
Answer» SOLUTION :The EARTH completes one ROTATION in 24 hour. Its \| angular velocity. `omega=(2piN)/(t)=(2pixx1)/(24xx60xx60)=(pi)/(43,200)rads^(-1)` `R=6.4xx10^(6)` m, The linear veloctiy, `v=Romega=6.4xx10^(6)xx(pi)/(43,200)=465.5m//s`