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The angular speed of rotation of the ea...

The angular speed of rotation of the earth is

A

`7.3xx10^(-5) rad s^(-1)`

B

`7.3xx10^(-4) rad s^(-1)`

C

`7.3xx10^(-6) rad s^(-1)`

D

`7.3xx10^(-3) rad s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) The earth rotates from west to east in 24 hours
`:. T=24 " hours" =24xx3600s=86400 s`
Its angular speed is
`omega=(2pi)/(T)=(2pi)/(86400)=7.3xx10^(-5) "rad"s^(-1)`
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