wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A uniform ring of mass m is lying at a distance 1.73 a from the centre of a sphere of mass M just over the sphere where a is the small radius of the ring as well as that of the sphere. Then gravitational

force exerted is


A

Gmm8a2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

Gmm(1.73a)2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

3Gmma2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

1.73Gmm8a2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D

1.73Gmm8a2


dF sin θ will get cancelled

d Fnet = dF cos θ = (dm)E cos θ

= (dm) GM32a2+(3a2)2

Fnet = d Fnet

= 38 Gmma2

mass of the earth m1 = M, Mass of the moon m2 = M81 and distance between earth & moon d = 60R


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Gravitation Field
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon