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Question

A 5 kg collar is attached to a spring of spring constant 500Nm1. It slides without friction over a horizontal rod. The collar is displaced from its equilibrium position by 10cm and released. The time period of oscillation is:

A
π5s
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B
π2s
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C
πs
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D
2πs
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Solution

The correct option is B π5s
Here, m=5kg,k=500Nm1,A=10cm=0.1m
Time period of oscillation is

T=2πmk=2π5kg500Nm1=2π10s=π5s

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