physics?

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A heavy steel ball S is suspended by a string from a block of wood W, as
shown in the sketch. The entire system is dropped from a height.
Neglecting air resistance, the tension in the string is equal to
A zero
B the weight of S
C the difference of the masses of S and W
D the difference of the weights of S and W

  • physics? -

    if they are both free fall, zero tension.

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