physic

posted by nada

A spring lies on a horizontal table, and the left end of the spring is attached to a wall. The other end is connected to a box. The box is pulled to the right, stretching the spring. Static friction exists between the box and the table, so when the spring is stretched only by a small amount and the box is released, the box does not move. The mass of the box is 0.85 kg, and the spring has a spring constant of 77 N/m. The coefficient of static friction between the box and the table on which it rests is μs = 0.60. How far can the spring be stretched from its unstrained position without the box moving when it is released?

  1. Ms.Cavill

    The word is spelled psychic

  2. Writeacher

    No ... it's spelled physics.

  3. Damon

    I think maybe spelled Physics.
    However it is an obvious case of homework or quiz dumping and does not interest me. At least one of the problems is in every beginning physics text. The student has not tried.

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