A ball of mass 0.6kg attached to a light inextensible string rotates in a vertical circle of radius 0.75m such that it has speed of 5 m/s when the string is horizontal. Tension in string when it is horizontal on other side is:
(g=10ms−2)
6N
30N
26N
20N
A
20N
B
6N
C
30N
D
26N
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Solution
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Given: m=0.6kg;R=0.75m
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