The weight of a body on the suface of the earth is 100 N. The same at a height equal to a radius of the earth will be
The weight of a body on the suface of the earth is 100 N. The same at a height equal to a radius of the earth will be
A. 25 N
B. 40 N
C. 75 N
D. 100 N
4 views
1 Answers
Correct Answer - a
`(W_(2))/(W_(1))=((R)/(R+h))^(2)=((R)/(R+R))^(2)`
`=((R)/(2R))^(2)=(1)/(4)`
`therefore" "W_(2)=(W_(1))/(4)=(100)/(4)=25N.`
4 views
Answered