physics

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(a)block A weigh 60N. the coefficient of static friction between the block and the surface on which it rests is 0.25. the weight W is 12N and the system is at equilibrium. find the friction force exerted on block A. (b)find the maximum weight W for which the system will remain in equilibrium.

  • physics -

    Something is missing here. Is the block on a ramp?

  • physics -

    no its on a flat surface with the static friction of .25. and W is hanging off the string at a 45 degree angle vertically.

  • physics -

    What is W attached to? I totally don't understand the picture.

  • physics -

    the string off of A

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