1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# If the acceleration due to gravity, g, is 10m/s2 at the surface of the earth (radius 6400km), then at a height of 1600km the value of g will be? (in m/s2)

A
4
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
B
5
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
7.5
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
D
2.5
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
Open in App
Solution

## The correct option is B 5The expression for value of g at some height is as follows g1=g(1−2hR). Here g1 is the value of acceleration to gravity h is height R is radius. It is given in problem that acceleration due to gravity is 10 meter per should square of the surface of the earth (radius 6400km) we have to calculate value of acceleration at height 1600km g1=g(1−2hR)Put g=10 meter per second square R=6400km and h=1600kmg1=10(1−2(1600×1000km)6400km)g1=5Value of g1=5m/s2.

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Potential Energy
PHYSICS
Watch in App
Join BYJU'S Learning Program