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Question
A stone of mass 2 kg is attached to a string of length 1 meter. The string can withstand a maximum tension of 200 N. What is the maximum speed that stone can have during the whirling motion?
Solution
Given,
Mass of a stone = 2 kg,
length of a string = 1 m
Maximum tension = 200 N
The force acting on a stone in the whirling motion is centripetal force. Which is provided by tension of the string.
Tmax = Fmax = `(mV_max^2)/r`
200 = `v_max^2` = 100
`v_max^2` = 10 ms-1
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