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physics

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A 34.2 -kg block rests on the
oor.
(a) What force (N) does the
oor exert on the block?
(b) If a rope is tied to the block and run vertically over a pulley, and the other end is
attached to a free-hanging 5.6 kg weight, what force (N) does the
oor now exert on the
block?
(c) If the free-hanging weight is replaced with a 20 kg weight, what force (N) does the

oor exert on the block?

  • physics - ,

    We will be glad to critique your thoughts.

  • physics - ,

    the following system (fig1) is in epuilibrium in the system a block of m=9 kg is attaehed the ceiling by two massless ropes are 45 of each two

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