An artificial satellite is moving in a circul | vedclass

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(B) The radius of the circular orbit is $r = 42250 \, km = 42250000 \, m$.The time taken to complete one revolution is $t = 24 \, h = 24 	imes 60 	i

Vedclass · Accepted Answer

$3074$

Vedclass · Answer

(B) The radius of the circular orbit is $r = 42250 \, km = 42250000 \, m$.The time taken to complete one revolution is $t = 24 \, h = 24 	imes 60 	imes 60 \, s = 86400 \, s$.The speed $v$ of an object moving in a circular path is given by the formula $v = \frac{2 \pi r}{t}$.Substituting the values: $v = \frac{2 	imes (22/7) 	imes 42250000}{86400}$.$v = \frac{2 	imes 22 	imes 42250000}{7 	imes 86400} \approx 3073.74 \, m s^{-1}$.Rounding to the nearest whole number,the speed is approximately $3074 \, m s^{-1}$.

An artificial satellite is moving in a circular orbit of radius $42250 \, km$. Calculate its speed (in $m s^{-1}$) if it takes $24 \, h$ to revolve around the Earth.

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