Question

A stone weighting 1kg is whriled in a vertical circle attached at the end of a rope of leght 0.5m find tension (1) lowest position (2)mid positon (3)highest position
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Answer 1

at lowest point v=(5gr)^1/2

at mid way point v=(3gr)^1/2

at highest point v=(gr)^1/2

T=mr(w)^2

v=rw

now substitute according to formulae above