Question

A planet of radius rp =1/10 radius of earth has the same mass and density as earth . Scientists dig a well of depth rp/5 on it and lower a wire of the same length and of nearly mass density 10^-3

Answer 1

Answer:

Heya... mate ...

Here's ur answer :::

Given that,

R - Radius of earth

gp – acceleration due to gravity of planet

»» Rp = R/10

.°. Rp = 6400/10

.°. Rp = 640 km

depth (d) = Rp/5

.°. d = 640/5 m

We have,

»»» gp = g(1-d/R)

»»» gp = 9.8(1-640/5*6400)

»»» gp = 9.8(1-1/50)

»»« gp = 9.8*(49/50)

««« gp = 9.8 * 0.98

.°. »»» gp = 9.6 m/s,,

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