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posted by rat boy on Sunday, February 3, 2013 at 2:47am.
A 2.1 kg ball tied to a string fixed to the ceiling is pulled to one side by a force to an angle of è = 26.6 how large is F? tension of string? before it was released
Tsinα=F Tcosα=mg F=mg•tanα T=mg/cosα
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