A test mass is placed at the origin

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

0.5\,\text{kg}

test mass is placed at the origin. Two other masses are fixed at

(0,3\,\text{m})

and

(4\,0\,\text{m})

with masses

6\,\text{kg}

and

8\,\text{kg}

respectively. What is the magnitude of the net gravitational force on the test mass?

(G = 6.67\times10^{-11}\,\text{N\,m}^2\!/\text{kg}^2)

(a)

1.7\times10^{-11}\,\text{N}

(b)

2.8\times10^{-11}\,\text{N}

(c)

2.2\times10^{-11}\,\text{N}

(d)

3.9\times10^{-11}\,\text{N}