A) \[1000N\]
B) \[500N\]
C) \[250N\]
D) \[125N\]
Correct Answer: C
Solution :
Value of acceleration due to gravity decreases on going below the surface of the earth. weight\[(w)\]of a body is defined as product of mass \[(m)\]and acceleration due to gravity\[(g)\] \[w=mg\] The value of\[g\]below the surface of earth at a distance\[h\]is given by \[g=g\left( 1-\frac{h}{R} \right)\] \[\Rightarrow \] \[W=w\left( 1-\frac{h}{R} \right)\] Given,\[h=\frac{R}{2},\,\,W=500\,\,N\] \[W=500\left( 1-\frac{1}{2} \right)\] \[=\frac{500}{2}=250\,\,N\]You need to login to perform this action.
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