Q. 255.0( 1 Vote )

(a) Earth can be

Answer :

(a) Given-


Radius of Earth = R = 6400km


Time period of circular motion of object around the earth = T = 1day = 24 hours


At the equator,


For an object performing circular motion acceleration can be found as,



3.38×10-2m/s2



At latitude θ,





(b) Given-


Orbital radius of Earth around Sun = 1.5×1011 m


Time period of 1 revolution = 1 year =365 days


We know acceleration during circular motion is given by,



= 5.97×10-3m/s2




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