physics

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1) Two boxes are placed are placed side by side on a frictionless surface so that they touch each other. Box A has a mass of 4 kg. Box B has a mass of 12 kg. A constant force of 24 N is applied to box A. What force does box A exert on box B?

  • physics -

    Box A exerts onto force b its acceleration as a force;

    So F=ma
    where 24=(12+4)a Then solve for a
    a=1.5


    Then the force that box a exerts on box b is
    F=ma
    =12*1.5
    =18N

  • physics -

    Good work.

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