CBSE Class 12-science Answered
a body of mass m when hung from a long and light spring stretches by 20 cm the period of vibration of mass when pulled down and release
Asked by Atulcaald | 31 May, 2018, 09:38: PM
Expert Answer
Spring force F = -k × x , where k is spring constant and x is eleongation of spring.
when a mass m is connected to a spring that gives 20 cm stretching, then we have
m×g = k×20×10-2 (only magnitude);
hence k/m = 9.8/(20×10-2) = 49 s-2
frequency f of oscillation is given by
Answered by Thiyagarajan K | 08 Jun, 2018, 05:30: PM
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