A planet of radius R = 1/10 x (radius of Earth) has the same 10 mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and of linear mass density 10^-3 kg m^-1 into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is (Take the radius of Earth = 6x10^6 m and the acceleration due to gravity on Earth is 10 ms^-2 )

Question:

A planet of radius R = 1/10 x (radius of Earth) has the same 10 mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and of linear mass density 10^-3 kg m^-1 into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is (Take the radius of Earth = 6×10⁶ m and the acceleration due to gravity on Earth is 10 ms-² )

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