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The angular speed of earth in rads^-1, s...

The angular speed of earth in `rads^-1`, so that the object on equator maiy appear weightless (g = `10 ms^_2` and radius of earth is 6400 km) is.

A

`1.56`

B

`1.25 xx 10^-1`

C

`1.56 xx 10^-3`

D

`1.25 xx 10^-3`

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