GravitationHard
Question
Three identical point masses, each of mass 1 kg lie in the x-y plane at points (0, 0) (0, 0.2m) and (0.2m,0). The gravitational force on the mass at the origin is : -
Options
A.1.67 × 10-11 (î + ĵ)N
B.3.34 × 10-10 (î + ĵ)N
C.1.67 × 10-9 (î + ĵ)N
D.3.34 × 10-10 (î + ĵ)N
Solution
F1 = F2 = 
= 1.67 × 10-9
= F1 (î) + F2 (ĵ) 1.67 × 10-9 (î + ĵ)
= 1.67 × 10-9= F1 (î) + F2 (ĵ) 1.67 × 10-9 (î + ĵ)Create a free account to view solution
View Solution FreeMore Gravitation Questions
Potential energy and kinetic energy of a two particle system are shown by KE and PE. respectively in figure. This system...The dependence of acceleration due to gravity g on the distance r from the centre of the earth, assumed to be a sphere o...Imagine a light planet revolving around a very massivr star in a circular orbit of radius R with a period of revolution ...A thin uniform annular disc (see figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a ...The figure shows elliptical orbit of a planet m about the sun S. The shaded area SCD is twice the shaded area SAB. If t1...