A body of mass 0.4 kg is tied to a string 1m long and whirled in a horizontal circle with a speed of 2 m per s find tension in the string and maximum speed with which the body can be whirled if the breaking strength of the string is 10 kg- wt
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Answer:
Given : mass , m = 0.4 kg
Radius , r = 1 m
g=9.8m/s2
Minimum speed required at lowermost point is
vmin=5gr−−−√=5×9.8×1−−−−−−−−−√=7 m/s .
Explanation:
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