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)?
            
        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)?
Answers
                    Answered by
            bobpursley
            
    Yes, the rock is weighless
    
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