Three solids of masses $m_{1}, m_{2} a n d m_{3}$ are connected with weightless string in succession and are placed on a frictionless table. If the mass $m_{3}$ is dragged with a force T, the tension in the string between $m_{2}$ and $m_{3}$ is

Two bodies of masses $m_{1}$ and $m_{2}$ are initially at rest placed infinite distance apart. They are then allowed to move towards each other under mutual gravitational attraction. Their relative velocity when they are r distance apart is

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Two objects of masses m1 and m2 are placed at a distance d. The force of gravitational attraction between them is proportional to:

The correct option is A m1m2d2The gravitational force between two objects proportional to the product of their masses and inversely proportional to the square of the distance between them. Hence, F∝m1m2d2

Two objects of masses $m_{1}$ and $m_{2}$ are placed at a distance $d$ . The force of gravitational attraction between them is proportional to:

The correct option is A $\frac{m_{1} m_{2}}{d^{2}}$
The gravitational force between two objects proportional to the product of their masses and inversely proportional to the square of the distance between them.
Hence, $F \propto \frac{m_{1} m_{2}}{d^{2}}$