Question

Q3. At what point should the 4m mass be placed such that the net force gravitational force on the green mass, m due to the blue mass m and the mass 4m is zero? A. Point A B. Point B C. Point C D. Point D E. Point E 4m Pn A BC D E

Answer 1

We will use result for gravitational force to balance net force on m.

F=(Gm₁m₂)/r²

^{We will use result for gravitational force to balance net force on�m. F = (G m_1 m_2)/r^2 (Gm) (m)/(2)^2 = (Gm)(4m)/x^2 x = 4 so 4m should be placed at D.}