Q. A body weight 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is:

A) 16 N
B) 27 N
C) 32 N
D) 36 N
Explanation

[Solution by Claude - not from source] Distance from centre $=\frac43R$. $F=48\left(\frac{R}{4R/3}\right)^2=48\times\frac{9}{16}=27$ N. Answer (2).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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