Asked by Andrea

a rock suspended from a string moves downwards at constant a=g. Which of the following is true concerning the tension in the string?
a) the tension is zero
b)the tension is equal to the weight of the rock
c)the tension is less to the weight of the rock
d)the tension is greater to the weight of the rock

wouldn't the amswer be a)?
Answered by bobpursley
Yes, the rock is weighless
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