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Kinematics. Newtons Laws

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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.

  • Kinematics. Newtons Laws -

    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

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