Question #e9a9e

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Question #e9a9e

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Answer 1 · 2016-06-30T05:47:29

Option (1)

Explanation:

Given tha the length of the cylindrical shaped artificial sattelite is 20 m and it is rotating about an axis which is perpendicilar bisector of the axial length (20m) of the satellite.So the radius of rotation is $r = 10 m$ $r=10m$ . If w is the angular velocity of rotation then the centrifugal acceleration produced due to this rotation will creat artificial gravity $4.9 \frac{m}{s^{2}}$ $4.9m/s^2$

So we can write

$Centrifugal acceleration = w^{2} \cdot r = 4.9$ $"Centrifugal acceleration "=w^2*r=4.9$

$\Rightarrow w^{2} \cdot 10 = 4.9 \Rightarrow w^{2} = 0.49 \Rightarrow w = 0.7$ $=>w^2*10=4.9=>w^2=0.49=>w=0.7$

$2 π \times n = 0.7$ $2pixxn=0.7$ ,where n = frequency of rotation

$:.n=0.7/(2*pi)~~0.1Hz$

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