Question
A smooth table is placed horizontally and an ideal spring of spring constant k = 1000 N / m and unextended length of 0.5m has one end fixed to its centre. The other end is attached to a mass of 5kg which is moving in a circle with constant speed 20m /s . Then the tension in the spring and the extension of this spring beyond its normal length are
Options :
500 N, 0.5 m
600 N, 0.6 m
700 N, 0.7 m
800 N, 0.8 m
Answer :
500 N, 0.5 m
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