0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

A body weighs 72 N on the surface of earth. What is the gravitational force on it due to earth at a height equal to half the radius of the earth from the surface?
  1. 72 N
  2. 28 N
  3. 16 N
  4. 32 N

A
16 N
B
28 N
C
32 N
D
72 N
Solution
Verified by Toppr

The correct option is D 32 N
At the surface of Earth, weight W=72N
F=mg=72N
m=7210=7.2kg
Now, at some height, h acceleration due to gravity is given as
g=g(1+hR)2
Here, h=R2
g=g(1+12)2=49g=4.44m/s2
Now, the force experienced by the body at half of the radius of the earth is given by:
F=mg=7.2×4.44=31.97N32N

Was this answer helpful?
137
Similar Questions
Q1
A body weighs 72 N on the surface of earth. What is the gravitational force on it due to earth at a height equal to half the radius of the earth from the surface?
View Solution
Q2
A body weight 72 N on the surface of the earth. What is the gravitational force acting on it due to the earth at a height equal to half the radius of the earth from the surface?
View Solution
Q3

A body weighs 72 N on the surface of the earth. What will be the force of gravity acting on the body at a height equal to half the radius of the earth above the earth's surface?


View Solution