A rock with the mass of 1.5 kg is tied to a string the length of 2m and is twirled in a vertical circle. The speed of the rockis constant; (same at the top and bottom of the circle). Ifthe tension of the string is zero when the rock is at its highestpoint, what is the tension when the rock is at the bottom?

Could someone please point me in the right direction? Thank you in advance!


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