Two point masses

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Two point masses,

6.0\,\text{kg}

and

24\,\text{kg}

, are held

4.0\,\text{m}

apart on a frictionless straight track. At what distance from the

6.0\,\text{kg}

mass along the line joining them can a third small mass be placed so that the net gravitational force on it is zero? (a)

3.2\,\text{m}

toward the

24\,\text{kg}

mass (b)

1.33\,\text{m}

toward the

6.0\,\text{kg}

mass (c)

1.33\,\text{m}

toward the

24\,\text{kg}

mass (d)

0.80\,\text{m}

toward the

24\,\text{kg}

mass