Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below. Use m1 = 1.2 g, m2 = 254 g and F = 0.7 N to find the force between the two objects.

Let f be the force between them, pushing on each other.

F - f = m1*a
f = m2*a

Ypu have two unknowns (a and f) and two equations.

Add the equations to get rid of f.

F = (m1 +m2)a

Now solve for f

To find the force between the two objects, we need to consider the concept of Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.

In this scenario, when a horizontal force F is applied to one object, an equal and opposite force will be exerted on the other object. Let's call this force "Ft" (force between the two objects).

Now, the force that is applied to the first object is given as F = 0.7 N. This force is equal to the force exerted by the first object on the second object, which is Ft (Ft = F = 0.7 N).

Therefore, the force between the two objects is 0.7 N.