A string 1m long would break when its tension is 69.6 N. Find the greatest speed at which a
ball of mass 2kg can be whirled with the string in a vertical circle.
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2
Answer:
Correct option is
B
5.89 m/s
Tension T=
R
mv
2
⇒v
max
=
m
RT
=
2
1×69.6
=5.89m/s
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