Questions
If g is acceleration due to gravity on the surface of the earth ,having radius R , the height at which the acceleration due to gravity reduces to is
a
R/2
b
2R
c
R/2
d
2-1R
detailed solution
Correct option is D
gh=gRR+h2 ⇒g2=gRR+h2 ∵ gh=g2 ⇒12=RR+h2 ⇒12=RR+h ⇒R+h=2R ⇒h=2-1RTalk to our academic expert!
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A body weight W newton at the surface of the earth. Its weight at a height equal to half the radius of the earth will be
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